Scion Parts

Scion Parts for Sale

This page lists the Scion parts we sell for the xB, xD and tC. Every part shown above can be ordered online, and each product page lists the models, years, engine and OE or interchange number it was made for.

Scion was a Toyota brand sold mainly in North America from 2003 to 2016. Every Scion used Toyota engines and many Toyota parts, which is why the parts here also list Toyota and Lexus models. If you drive a Scion anywhere in the world, the matching Toyota part is often the easiest way to find what you need, and our Toyota parts and Lexus parts pages are worth a look.

Below are the parts with their specs, common Scion repairs, how to check fitment, fitting tips and answers to frequent questions.

Scion Parts in Stock

Common Scion Repairs

O2 sensors on the xD

The 1.8L engine in the xD has an upstream sensor before the catalytic converter and a downstream sensor after it. When either wears out, the check engine light comes on and fuel use can go up. Replacing both together is sensible on a car of this age. See car sensors for more.

Starters

A click with no crank, slow cranking with a good battery, or the engine starting only sometimes all point to a worn starter. Test the battery and clean the cable ends first, because a poor connection gives the same symptoms. See starter motors.

Alternators on the tC

A battery warning light, dim lights, a battery that keeps going flat, or a whining noise from the front of the engine suggest the alternator is failing. With the engine running, a healthy charging system should show around 13.8 to 14.7 volts at the battery. If it reads close to 12 volts, the alternator is not charging. See replacement alternators.

For background on the brand, see the Scion article on Wikipedia.

How to Make Sure Scion Parts Fit

  1. Model and generation. The xB had two generations: 2004-2006 with a 1.5L engine, and 2008-2015 with a 2.4L engine. Parts are not shared between them. Check the years on each listing.
  2. Engine. The xD uses a 1.8L, the second-generation xB a 2.4L, and the second-generation tC a 2.5L.
  3. Transmission. Starters can differ between manual and automatic versions.
  4. OE numbers. Match numbers such as 89465-01090, 28100-20021 and 290-5543 with your old part.
  5. Alternator pulley. Count the grooves on your pulley. Ours has six.

If you are unsure, send your VIN through our contact page.

Fitting Tips

  • O2 sensors: use an O2 sensor socket and fit the new sensors with the anti-seize already on the threads. Keep grease and cleaners away from the sensor tip.
  • Starter and alternator: disconnect the negative battery cable first. Check the drive belt when fitting the alternator and replace it if it is cracked or glazed.
  • After fitting: clear any stored fault codes and check that the warning lights stay off.

More Parts by Category

Ordering, Delivery and Returns

You can order these Scion parts directly from this page. Delivery options and times for your country appear at checkout and on our shipping page. If a part does not match its listing, our returns page and warranty page explain what to do.

Scion Parts FAQ

Do Toyota parts fit Scion cars?

Many do. Scion used Toyota engines and many Toyota components. Check the fitment list for your model and year.

Is Scion still making cars?

No. Toyota ended the Scion brand in 2016, and some models carried on under the Toyota name. Parts are still widely made.

How do I test my alternator?

With the engine running, measure the battery voltage. Around 13.8 to 14.7 volts is normal. Close to 12 volts means it is not charging.

Should I replace both O2 sensors?

Only one may have failed, but on an older car replacing both often saves a second job.

Do you deliver Scion parts to my country?

Countries and delivery costs are shown at checkout. See our shipping page.

Scion Was Toyota: What That Means for Parts

Scion was a Toyota brand sold in North America from the 2004 to the 2016 model year. Every Scion was built by Toyota, or with Toyota's partners, and nearly all use Toyota engines, electrical parts and many chassis parts. When Scion closed, several models moved to the Toyota badge: the iA became the Toyota Yaris iA, the iM became the Toyota Corolla iM, and the FR-S became the Toyota 86. This Toyota connection is great news for parts. A Scion xB, xD or tC often uses the same starter, alternator, sensors, filters and brake parts as a Corolla, Camry, RAV4, Matrix or Prius of the same years. That is why this collection includes the 2.5L alternator for the Camry, RAV4 and Scion tC, the starter for the Camry, Lexus ES350 and Scion xB and the O2 sensor set for the Scion xD and Toyota Prius. Browse Toyota parts and Lexus parts too.

Scion Models and Their Engines

  • xA and first-generation xB (2004-2006): 1.5L four-cylinder, shared with the Toyota Echo and Yaris of the time.
  • Second-generation xB (2008-2015): 2.4L four-cylinder, shared with the Camry, RAV4 and Matrix of the period.
  • tC (2005-2016): 2.4L four-cylinder in the first generation, then 2.5L four-cylinder from the second generation.
  • xD (2008-2014): 1.8L four-cylinder, shared with the Corolla and Matrix.
  • iQ (2012-2015): 1.3L four-cylinder city car.
  • FR-S (2013-2016): 2.0L flat-four, developed with Subaru and shared with the Subaru BRZ.
  • iA and iM (2016): the iA was built with Mazda; the iM was a Toyota Auris-based hatchback.

Knowing your engine is the first step to finding the right part. The engine size is usually on the engine cover, and the VIN's 5th to 8th characters encode the engine and body type.

Common Scion Repairs

Starters and alternators: On high-mileage xB and tC models, a slow crank or a battery warning light often points to a worn starter or alternator. Test the battery first, then the charging voltage with the engine running, which should usually be between about 13.5 and 14.5 volts.

Oxygen sensors: Toyota-built engines use upstream air-fuel sensors and downstream oxygen sensors. When one fails, fuel economy drops and the check engine light comes on with a sensor or catalyst efficiency code. Replace the failed sensor with the correct type, and use a sensor socket and anti-seize on the threads unless the new sensor already has it.

Oil consumption on the 2.4L: Some 2.4L engines of this era are known to use oil as they age. Check the oil level regularly between changes, and top up as needed. Low oil is a common cause of engine damage on these engines.

Suspension and brakes: Front struts, sway bar links and control arm bushings wear over time, causing knocks and loose handling. Pads and rotors are routine wear items.

The FR-S and Its Subaru Cousin

The FR-S, the Subaru BRZ and the Toyota 86 are essentially the same car. Many engine, suspension and body parts interchange between all three, although each brand has its own bumpers, lights and some trim. The flat-four engine uses direct and, in most years, port injection. Owners often upgrade the intake, exhaust and suspension. Check our Subaru parts and performance parts when shopping for an FR-S.

Finding the Right Part Number

Because Scion parts carry Toyota part numbers, the number stamped or printed on your old part is the best guide. Starters and alternators have a label with a Toyota or Denso number, sensors have a number on the body, and filters have a number on the side. If you send us that number with your VIN through our request a part page, we can confirm whether a part fits.

Easy DIY Jobs on a Scion

  • Replacing the engine air filter and cabin air filter.
  • Changing the oil and oil filter.
  • Fitting new wiper blades and bulbs.
  • Replacing the battery and cleaning the terminals.
  • Changing brake pads, with the right tools and care.

Bigger jobs, like timing components, clutches and suspension, are best done with a service manual or by a workshop. Find service parts in our maintenance parts and filters and maintenance categories.

Scion Values and Cost-Effective Repairs

Many Scions are now older vehicles with moderate market values, so owners want repairs that make sense for the car's worth. Using quality aftermarket parts that match the Toyota specification is often the best balance of cost and reliability. Our product pages list the OE and interchange numbers so you can match the original part.

Delivery

We deliver Scion and Toyota parts to many countries. In markets where Scion was not sold, the same cars were often badged as Toyotas, so check the Toyota equivalent of your model. Delivery details are on our shipping page.

The Scion xB: First and Second Generations

The xB is probably the best-known Scion. The first-generation xB, sold from 2004 to 2006, was a small, upright box with a 1.5L engine, sharing much with the Toyota Echo and the Japanese-market bB. It became a favourite for customising. The second-generation xB, sold from the 2008 to the 2015 model year, was larger and used the 2.4L four-cylinder engine from the Camry and RAV4 of the time. That shared engine means many 2.4L parts, such as the starter, alternator, ignition coils, sensors and water pump, interchange with Toyota models. Check the engine size before ordering, because the two generations share almost no engine parts.

The Scion tC: A Popular Sports Coupe

The tC was Scion's sporty coupe, sold from the 2005 to the 2016 model year. The first generation used a 2.4L engine, and the second generation, from 2011, used a 2.5L engine shared with the Camry. Common repairs on tCs include the alternator, the starter, front struts, sway bar links and brakes. On the 2.5L engines, our 2.5L 6-groove alternator lists the 2011-2016 tC. Before replacing an alternator, check the battery, the serpentine belt and the belt tensioner, because a slipping belt reduces charging.

The Scion xD and iM

The xD hatchback used the 1.8L engine shared with the Corolla and Matrix, making parts easy to source. The iM, sold for 2016 and later as the Toyota Corolla iM, was a Toyota Auris-based hatchback. For these models, look in our Toyota parts collection for the matching Corolla part, and check the fitment.

The FR-S

The FR-S was a rear-wheel-drive sports car developed with Subaru and sold as the Subaru BRZ and later the Toyota 86. Its 2.0L flat-four engine is shared across all three. Owners often upgrade the exhaust, intake, suspension and wheels, and common maintenance includes oil changes with the correct grade, spark plugs, and brake pads for cars that see track days.

Starter and Charging Problems

A car that clicks but does not crank usually has a weak battery, a poor connection or a failing starter. A car that cranks but shows a battery warning while driving has a charging problem, often the alternator or the belt. Test the battery voltage with the engine off, which should be around 12.6 volts when fully charged, and with the engine running, which should usually be between about 13.5 and 14.5 volts. If the running voltage is low, the alternator may be failing. Our starter 17825 lists the Scion xB along with the Camry and Lexus ES350.

Emissions Sensors and Catalytic Converters

When an upstream air-fuel sensor or downstream oxygen sensor fails, the engine computer cannot control the mixture as precisely, and fuel economy drops. If left too long, a rich mixture can damage the catalytic converter, which is far more expensive to replace than a sensor. Replace failed sensors promptly. Our Scion xD and Prius O2 sensor set includes both upstream and downstream sensors.

More Questions About Scion Parts

Are Scion parts the same as Toyota parts?

Mostly. Scions were built by Toyota and use Toyota part numbers. Check the fitment for your model and engine.

Can I still buy Scion parts after the brand closed?

Yes. Toyota continues to support Scion vehicles, and aftermarket suppliers make many parts.

Which engine does my xB have?

The 2004-2006 xB uses a 1.5L engine; the 2008-2015 xB uses a 2.4L engine.

Do FR-S parts fit the Subaru BRZ?

Many mechanical parts do, since the cars share their design. Bumpers, lights and some trim differ.

Can you help me find a part?

Send us the part number and VIN through our request a part page.

Scion Maintenance Schedule Basics

Because Scions are Toyota-engineered, they follow Toyota's maintenance approach. The exact schedule is in your owner's manual, but most owners can follow these broad points:

  • Engine oil and filter: change at the interval in the manual, more often for short trips, towing or dusty roads.
  • Tyre rotation: rotate regularly to even out wear, often at every oil change.
  • Engine air filter: inspect at every service and replace when dirty.
  • Cabin air filter: replace yearly or when airflow drops.
  • Spark plugs: long-life iridium plugs are used on many Scion engines; replace at the scheduled distance.
  • Brake fluid and coolant: replace at the intervals in the manual.
  • Transmission fluid: check and service according to the manual, especially on automatic models with high mileage.

Customising Your Scion

Scion marketed its cars to buyers who liked to personalise them, and many tC, xB and FR-S owners still do. Popular changes include wheels, lowering springs or coilovers, intakes and exhausts, lighting, and interior trim. When you modify a car, keep safety and legality in mind: lowered cars need correct alignment, lighting changes must stay road legal, and exhaust changes must meet local noise and emissions rules. Find upgrade parts in our performance parts, lighting and shocks, struts and coilovers collections.

Buying a Used Scion

Scions are often good used buys thanks to their Toyota engineering. When checking one, look at the service history, check the oil level and condition, listen for engine noises on a cold start, test the clutch on manual models, and inspect the suspension for knocks. On 2.4L engines, ask whether the car has used oil between changes. Check that every electrical feature works, including the windows, locks and air conditioning.

Scion Parts Outside North America

Scion was sold mainly in North America, but the same cars were sold elsewhere under Toyota names, such as the Toyota Rumion, Corolla Rumion, Auris, Urban Cruiser, ist and GT86. If you live outside North America and own one of these Toyotas, many parts in this collection may fit; check the part numbers.

Scion Suspension and Steering

Scions are light, simple cars, and their suspension is easy to work on. Common wear items include front struts, sway bar end links, front lower control arm bushings and outer tie rod ends. A knocking noise over small bumps often points to worn sway bar links, which are cheap and quick to replace. A clunk when braking or turning may be worn control arm bushings or strut mounts. Loose or wandering steering can come from worn tie rod ends. After replacing steering or suspension parts, get a wheel alignment to protect the tyres.

Scion Brakes

Most Scions use front disc brakes with rear drums or rear discs depending on the model and year. Replace pads and shoes in axle sets, check the rotors and drums for wear, and change the brake fluid at the interval in the manual. On drum brakes, adjusting the shoes correctly keeps the handbrake working properly.

Scion Lighting and Electrical

Headlight bulbs, tail light bulbs and fuses are easy owner jobs on most Scions. If a light stops working, check the bulb first, then the fuse, then the connector. Battery terminals can corrode over time and cause starting problems, so clean them with a terminal brush and protect them with grease or a terminal spray.

Parts Shared With Lexus

Some Scion parts are also used in Lexus vehicles, especially larger engine components shared with Toyota's 2.4L and 2.5L engines. Our starter 17825, for example, lists the Lexus ES350 along with the Camry and Scion xB, although the engines differ by model. Always check the exact fitment.

Our Scion Range

We stock starters, alternators and sensors for popular Scion models, and we add parts as we source them. If you need something specific, send us the part number and VIN through our request a part page.

Scion Parts Ordering Checklist

  • Model, such as xB, xD, tC, iQ, FR-S, iA or iM.
  • Model year, especially for the xB and tC, which had two generations with different engines.
  • Engine size: 1.3L, 1.5L, 1.8L, 2.0L, 2.4L or 2.5L.
  • Manual or automatic transmission.
  • The Toyota part number on your old part, if you can find it.
  • The matching Toyota model, such as the Corolla, Camry or Matrix, to widen your search.

These details make it easy to match our listings. If you need help, send them to us through our request a part page and we will check what fits your Scion.

Why Scion Owners Keep Their Cars

Many Scion owners keep their cars far longer than they planned, thanks to Toyota engineering, low running costs and simple maintenance. The xB and xD are practical city cars with surprising interior space, the tC is a comfortable coupe with a big hatch, and the FR-S is a genuine sports car. Keeping them on the road usually means routine items: brakes, filters, sensors, starters, alternators and suspension parts. Each Scion part on this page lists its fitment and Toyota-compatible part numbers, so you can match it with confidence.

Delivery options for your country appear at checkout and on our shipping page, and our returns page explains what to do if a part does not match.