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If you own a Subaru Impreza, worn or leaking rear brake calipers can seriously affect pedal feel, stopping distance, and long-term safety. Choosing the right rear brake calipers matters because the wrong unit can cause uneven pad wear, brake drag, or premature failure on this vehicle.This guide covers seven shortlisted rear brake calipers that fit the Impreza and explains the evaluation criteria used to narrow the field. We focus on real-world concerns like correct fitment, sealing and piston condition, corrosion protection, and ease of installation to help you pick the most reliable option for routine maintenance or a rebuild.
Looking for other parts? See all Subaru Impreza parts & accessories.
Top Picks at a Glance
| Best Overall The best all-around choice for most situations | cciyu Rear Left & Right Disc Brake Calipers Assembly with Bracket (Set of 2) |  |
| Best Quality Built to a higher standard if you want something more solid | TRQ Rear Driver and Passenger Side Brake Caliper Set (Rear) |  |
| Best Value The sweet spot between price and what you get | Torchbeam Rear Brake Calipers Set with Brackets for Subaru (Rear Left & Right) |  |
| Best Budget The cheapest option that still gets the job done reliably | cciyu Rear Right Disc Brake Caliper Assembly (Rear Passenger Side) |  |
| Highest Rated A top-rated pick with lots of positive feedback | A-Premium Rear Wheel Disc Brake Caliper with Bracket |  |
| Most Popular A crowd favorite that many people choose with confidence | Detroit Axle Rear Brake Caliper Kit with Brackets for Subaru WRX/Impreza/Forester (Rear, Driver & Passenger) |  |
| Best Seller A high-volume bestseller chosen again and again | Detroit Axle Rear Brake Caliper Kit (2) for 2006–2007 Subaru Impreza |  |
1. cciyu Rear Left & Right Disc Brake Calipers Assembly with Bracket (Set of 2)
| Position | Rear |
|---|---|
| Piston diameter | 38 mm |
| Bleeder port size | M10 x 1.0 |
| Inlet port size | M10 x 1.0 |
| Brake piston count | 1 piston |
These cciyu rear caliper assemblies are a direct replacement set for the rear driver and passenger sides on the listed Subaru Impreza, Forester, and WRX models. Each caliper is cast iron with a coated housing, sealed piston design, and thickened seals intended to resist fluid leaks and reduce noise. The kit ships with the mounting brackets and installation hardware so you can swap them in without hunting for extra parts. With a single 38 mm piston per caliper and factory-style bleeder and inlet ports, they restore braking function and feel close to a factory replacement while promising durable corrosion protection. Expect a straightforward install for someone comfortable with a basic brake job, but plan to replace pads and rotors at the same time for a complete service. These are not performance upgrades for racing applications but provide a cost-effective, reliable replacement for everyday driving and commuting.
Best for: Buyers who want a reliable, factory-style rear caliper replacement that restores braking performance and durability for daily driving on specified Subaru Impreza, Forester, and WRX models.
Less Ideal for: Drivers seeking performance-oriented calipers for track or heavy-duty towing should consider purpose-built upgrades instead.
- Includes mounting bracket and installation hardware for a near drop-in replacement
- Cast iron construction with coated housing and sealed pistons for long-term durability
- Designed to match OEM fit and function with M10 bleeder and inlet ports
- Thickened seal rings and precision-machined pistons aimed at reducing leaks and noise
- Sold without brake pads so a separate pad purchase is required for a complete brake job
- Not intended as a high-performance upgrade for track use
Verdict: A practical, factory-style rear caliper pair that gives Subaru owners a durable, near plug-and-play replacement for everyday driving.
2. TRQ Rear Driver and Passenger Side Brake Caliper Set (Rear)
| Model | TRQ CLA32362 2 Piece Brake Caliper Set |
|---|---|
| Exterior | Machined |
| Zinc Coated | Yes |
| Seals | EPDM |
| Includes | Hardware and abutment kit |
This TRQ rear caliper set replaces both driver and passenger side units as a direct-fit repair for compatible Subaru Impreza rear brakes. Each caliper arrives preassembled with zinc coating and EPDM seals to resist corrosion and thermal degradation, and the kit includes hardware and an abutment kit so you can complete the repair without sourcing extra parts. In typical use the calipers restore firm pedal feel and even braking at the rear axle after worn or leaking originals are removed; the zinc finish and new seals help reduce future rust and sticking during seasonal use. Because these are 100 percent new components with no core charge, installation is straightforward for a DIYer comfortable with brake work, and TRQ supplies installation videos to guide the process. The parts are intended as a factory-style replacement rather than an upgraded performance caliper, so they improve reliability and longevity but do not change piston size, braking bias, or offer performance tuning features.
Best for: Buyers who need a reliable, factory-quality rear caliper replacement to restore proper braking on their Subaru and prefer a straightforward DIY repair process guided by installation resources.
Less Ideal for: Drivers seeking a performance-oriented upgrade, different piston sizing, or a caliper designed for track use should consider aftermarket performance calipers instead.
- Direct-replacement design with preassembled components for faster installation
- Zinc coating reduces corrosion for longer service life in wet climates
- EPDM seals improve resistance to thermal deterioration compared with generic seals
- Includes hardware and abutment kit so no additional parts are required for a complete rear caliper repair
- Not a performance-upgrade caliper so it will not increase braking power or change pedal feel beyond restoring factory performance
Verdict: If you want a dependable, factory-style rear caliper replacement that restores braking reliability and comes ready to install, this TRQ rear caliper set is a practical choice.
3. Torchbeam Rear Brake Calipers Set with Brackets for Subaru (Rear Left & Right)
| Position | Rear |
|---|---|
| Piston material | Steel |
| Number of pistons | 1 |
| Exhaust port size | M10x1.0 |
| Piston OD-IN | 1.5 |
These Torchbeam rear caliper assemblies replace the rear left and right calipers and include mounting brackets and steel pistons for a direct-fit factory-quality replacement on supported Subaru models. They are intended for rear axle service and arrive with the installation hardware noted, a machined exterior, and a single piston per caliper design with a 1.5-inch piston diameter. In real-world use the units restore clamping force and braking feel after worn or seized originals, and the included brackets simplify swapping the whole assembly instead of rebuilding the old caliper. Buyers will appreciate the steel piston and M10x1.0 bleed port that match common Subaru brake plumbing. Limitations to note are that these are replacement calipers without pads included and they are a single-piston rear design, so they are best for routine repair rather than performance upgrades. Installation is straightforward for a home mechanic with basic brake tools but expect brake fluid bleeding and bed-in time after fitting.
Best for: Buyers who want a practical, like-for-like replacement to restore rear braking performance on supported Subaru Impreza models and prefer a straightforward swap instead of rebuilding old calipers.
Less Ideal for: Drivers seeking upgraded stopping power for track use or those who want a multi-piston performance caliper should consider performance-oriented options instead.
- Complete rear caliper assemblies with brackets for direct replacement
- Machined exterior and steel piston for durability
- Includes installation hardware and standard M10x1.0 bleed port for easy bleeding
- Designed to match factory mounting and piston diameter for proper braking geometry
- Does not include brake pads so additional purchase is required
- Single-piston design is intended for standard braking duty rather than high-performance applications
Verdict: A practical, factory-style rear caliper assembly set that restores proper braking on compatible Subaru Impreza models with minimal fuss.
4. cciyu Rear Right Disc Brake Caliper Assembly (Rear Passenger Side)
| Position | Rear Right |
|---|---|
| Piston Size | 1.5 inch |
| Piston Count | 1 Piston |
| Inlet Port Size | M10 x 1.0 |
| Bleeder Port Size | M10 x 1.0 |
This cciyu rear right disc brake caliper is a direct replacement unit intended to restore braking function on compatible Subaru Impreza and WRX rear passenger sides. It ships as one painted, cast-iron caliper with bracket and mounting hardware so you can swap it into the car without hunting for extra parts. The unit uses a single metal piston with a 1.5-inch diameter and M10 x 1.0 inlet and bleeder ports, which mirrors common factory plumbing and makes bleeding and hose connections straightforward. The manufacturer emphasizes treated surfaces and thicker seals to reduce the risk of leaks and corrosion, and the coated finish helps longevity on road-exposed components. Expect basic, quiet braking performance suitable for daily driving and light-duty use. The trade-offs are that this is a budget aftermarket part rather than a premium remanufactured or OEM caliper, so long-term fit or finish details may vary and highly demanding driving conditions could reveal differences versus higher-end units.
Best for: Buyers looking to replace a failed rear passenger-side caliper on a Subaru Impreza or WRX with a low-cost, ready-to-install unit that gets the car back on the road quickly.
Less Ideal for: Drivers who need a long-term premium remanufactured caliper for high-performance, track use or those prioritizing exact factory matching for show-quality restoration.
- Includes bracket and mounting hardware for direct installation
- Coated, cast-iron construction and thicker seals aimed at durability and leak resistance
- Single-piston design with common M10 port sizes simplifies bleeding and hose connection
- Painted finish helps resist corrosion and reduces maintenance needs
- Aftermarket budget unit so fitment tolerances and long-term durability may not match higher-cost factory-quality replacements
Verdict: A cost-conscious, direct-fit rear-right caliper that includes bracket and hardware to quickly restore braking on supported Subaru Impreza/WRX models.
5. A-Premium Rear Wheel Disc Brake Caliper with Bracket
| Brake Piston Count | 1 Pistons |
|---|---|
| Piston Size (OD) | 38.0 mm |
| Inlet Port Size | M10 x 1.0 |
| Bleeder Port Size | M10 x 1.0 |
This A-Premium rear brake caliper is a direct replacement assembly intended for rear left and right wheels on compatible Subaru Impreza, Forester, and WRX applications. It installs in place of the factory unit and ships with the caliper bracket, metal piston, and hardware to simplify fitment. The caliper uses a single 38.0 mm piston, M10 inlet and bleeder ports, and an anti-rust coating that helps resist corrosion in wet driving conditions. In normal use it restores braking force and pedal feel when an original caliper has seized, leaked, or been damaged, and the included bracket reduces parts chasing during installation. Limitations to consider are that it is a non-performance unit meant as a factory-style replacement and buyers should confirm the listed fitment carefully against engine and year, since it is specified for certain WRX engines only. The seller provides a one year unlimited-mileage quality guarantee that offers basic peace of mind after installation.
Best for: Buyers who want a dependable, like-for-like rear caliper replacement for Subaru vehicles and prioritize restoring factory braking function with minimal fuss.
Less Ideal for: Drivers seeking higher-performance brake upgrades, motorsport use, or staggered/modified brake systems should consider performance-specific calipers instead.
- Complete replacement assembly including bracket and installation hardware for easier installation
- Single 38.0 mm metal piston construction matches factory-style operation
- M10 inlet and bleeder ports use common fittings for bleed and hose connection
- Anti-rust coating to help extend service life in corrosive environments
- Designed as a factory-style replacement rather than an upgraded performance caliper
Verdict: A practical, factory-style rear caliper assembly that restores reliable braking for compatible Subaru models with straightforward installation.
6. Detroit Axle Rear Brake Caliper Kit with Brackets for Subaru WRX/Impreza/Forester (Rear, Driver & Passenger)
| Fitment | Rear replacement for specified Subaru WRX, Impreza, Forester models |
|---|---|
| Piston size | 1.50 inch (38.02 mm) |
| Piston material | Steel |
| Brake caliper bracket | Included |
This Detroit Axle kit supplies both left and right rear brake calipers with mounting brackets intended as direct-fit replacements for compatible Subaru WRX, Impreza, and Forester models. Each caliper uses a single 1.50 inch steel piston and arrives zinc plated to resist visible corrosion. Installation is straightforward for a competent DIYer or a shop because the brackets are included and the units are built to match factory mounting points and hydraulic connections. The manufacturer says the calipers undergo pressure testing to prevent leaks and that construction aims to restore stable braking feel comparable to factory parts. Practical benefits include avoiding a core exchange, having both sides at once for even braking, and the corrosion-resistant finish for longer visual life. Limitations are that these are remanufactured-style aftermarket replacements rather than performance upgrades, and fitment is limited to the specific Subaru models and configurations listed so you must verify engine and package compatibility before buying.
Best for: Buyers who value documented real-world feedback and want a ready-to-install pair of factory-style rear calipers that restore original braking function on the listed Subaru models.
Less Ideal for: Do not choose this if you need performance brake components, parts for vehicles outside the specific Subaru fitment list, or if you require braided lines or pad-inclusive kits in a single purchase.
- Includes both driver and passenger rear calipers with brackets for one convenient replacement service visit
- Zinc plating provides visible corrosion resistance for longer-lasting appearance
- Built and pressure tested to match factory-style hydraulic sealing and reduce leak risk
- Single 1.50 inch steel piston design simplifies rebuild/bleed procedures and matches listed factory spec
- Not a high-performance or heavy-duty upgrade; intended as a factory-style replacement
Verdict: A convenient, pressure-tested pair of zinc-plated rear calipers with brackets that restore factory-style braking on the specified Subaru rear applications.
7. Detroit Axle Rear Brake Caliper Kit (2) for 2006–2007 Subaru Impreza
| Position | Rear Left and Right |
|---|---|
| Piston Size | 1.50 inch (37.97mm) |
| Piston Material | Steel |
| Piston Quantity | 2 |
This Detroit Axle kit supplies both rear left and right brake calipers intended to replace worn or leaking units on 2006–2007 Subaru Impreza models. The calipers use two 1.50-inch steel pistons per unit and are sold without mounting brackets or brake pads, so installation typically involves transferring existing brackets and fitting new pads separately. The construction is tested for impact, wear, and fatigue which supports long-term durability, and the twin-piston design helps provide even pressure across the pad for consistent stopping feel. Because the calipers come as a pair they simplify a matched-service job on the rear axle. A practical limitation is that you must supply or reuse brackets and pads, and a professional bleed and inspection are recommended after installation to ensure correct function. For buyers who prefer avoiding uncertain aftermarket quality, the product’s testing and included warranty make it a reassuring upgrade for routine brake repairs on the specified Impreza models.
Best for: Buyers looking for a conservative, tested replacement set that restores rear braking on a 2006–2007 Subaru Impreza with minimal fitment risk and the option to reuse existing hardware.
Less Ideal for: Shoppers who want a complete plug-and-play kit with pads and brackets included or those repairing multiple brake components at once and prefer an all-in-one package.
- Sold as a matching left and right rear caliper pair for consistent performance across the axle
- Twin 1.50-inch steel pistons per caliper promote even pad contact and reliable braking force
- Undergoes impact, wear, and fatigue testing aimed at durability
- Makes a direct-fit replacement for 2006–2007 Subaru Impreza rear calipers
- Does not include brake pads or caliper mounting brackets, so additional parts may be required
Verdict: A tested, matching pair of rear calipers made to restore reliable braking on 2006–2007 Subaru Imprezas for buyers who prioritize proven, low-risk replacements.
Choosing the Right Subaru Impreza Rear Brake Calipers: Key Factors to Consider
Correct Fitment and Mounting
Accurate fitment is the most important factor for the Subaru Impreza because caliper brackets, guide pins, and parking brake linkages must align precisely. A caliper that does not match the factory mounting points can cause improper pad contact, accelerated wear, and potential safety issues.
Verify bolt hole pattern, guide pin orientation, and whether the caliper is intended for the specific rear hub and parking brake arrangement on the Impreza. If you plan to reuse existing carrier hardware, ensure the replacement caliper accepts the same pins and pad retaining method to avoid additional modifications.
Piston Type and Seal Quality
The piston surface finish and seal design determine how smoothly the piston retracts and extends. For the Impreza, a well-finished piston and robust seals reduce the chance of sticking, which can cause drag, overheating, or uneven pad wear.
Look for calipers with durable rubber seals and dust boots that resist heat and ozone. Consider piston material and plating that resist corrosion. Proper sealing also limits fluid contamination and helps preserve braking consistency over time.
Corrosion Protection and Coating
Rear calipers are exposed to moisture, road salt, and debris, especially in regions where Subaru Impreza owners drive in winter conditions. Protective coatings and plating help prevent surface rust that can seize sliding components or roughen pistons.
Assess the type of finish used on the caliper body and piston. Quality anti-corrosion treatments extend service intervals and make future maintenance easier. A robust coating is particularly valuable if you frequently drive on salted roads or through wet environments.
Hardware Completeness and Included Parts
A complete caliper kit reduces installation time and uncertainty. For the Impreza, kits that include guide pins, mounting bolts, bleeder screws, and any necessary clips ensure a smoother replacement process and reduce the chance of missing components during installation.
Confirm whether the unit includes new seals or boots if it is a remanufactured caliper, and whether any parking brake hardware is supplied. Missing parts often mean additional trips to the parts store and increase overall labor time.
Compatibility with Parking Brake System
Many Impreza rear brake assemblies integrate a mechanical parking brake mechanism that interacts with the caliper. Choosing a caliper compatible with the factory parking brake linkage prevents issues with lever travel, inadequate parking brake force, or cable misalignment.
If your vehicle uses a manual parking brake at the rear calipers, ensure the replacement matches the actuator style and attachment points. For vehicles with electronic parking brakes, verify compatibility with the electronic actuation mechanism if applicable.
Serviceability and Long-Term Maintenance
Consider how easy the caliper will be to service in the future. For Impreza owners who perform brake jobs themselves, units with easily replaceable seals, readily available bleed screws, and standard guide pin sizes simplify future repairs.
Remanufactured options that provide rebuildable pistons and seals may be more economical over time, but check that replacement parts and rebuild kits are available for the caliper design you choose.
Signs Your Rear Caliper Needs Replacement
Recognizing caliper issues early helps prevent uneven pad wear and reduced braking performance. Common symptoms on the Subaru Impreza include a soft or dragging brake pedal, uneven pad wear on the rear wheels, or a persistent brake warning light tied to pressure imbalance.
You might also notice a pulling sensation during braking or higher-than-normal brake temperatures after short drives. Visual inspection can reveal leaking brake fluid at the caliper seals or heavy surface corrosion that could indicate internal damage.
- Brake pedal feels spongy or requires extra travel
- Vehicle pulls to one side under braking
- Excessive pad wear on one rear wheel
- Fluid leaks or wetness near the caliper seals
- Brake temperature hot to the touch after brief use
Remanufactured Versus New-Production Calipers
Both remanufactured and new-production calipers can be suitable for the Subaru Impreza depending on the source and reman process. Remanufactured units often reuse the original housing while replacing pistons, seals, and hardware; the quality depends on how thoroughly corrosion and dimensional tolerances were addressed.
New-production calipers provide fresh components and coatings but can vary in material and manufacturing standards. Prioritize units with clear specifications about piston finish, seal materials, and coating to avoid surprises after installation.
- Remanufactured: may include replaced seals and pistons; inspect for thorough machining and coating
- New-production: fully new components; confirm material and coating details
- Either option should list explicit fitment for the Subaru Impreza rear assembly
Installation Tips for Subaru Impreza Rear Calipers
Prepare the vehicle by supporting it securely and relieving hydraulic pressure from the brake system. Before removing the old caliper, measure pad thickness and note any hardware orientation to replicate during reassembly.
Use new mounting hardware when possible and lubricate guide pins with high-temperature brake grease. After installing the new caliper, bleed the system properly to remove air; perform several firm pedal pumps with the vehicle supported to ensure correct hydraulic pressure and pedal firmness.
- Torque mounting bolts to factory specifications
- Replace or service flexible brake lines if cracked or damaged
- Avoid compressing pistons too quickly to prevent seal damage
- Perform a road test at low speed to confirm pedal feel and absence of leaks
When to Consider a Rebuild Instead of Replacement
If the caliper body is structurally sound and corrosion is limited to the exterior, a rebuild with a brake caliper rebuild kit can restore function at lower material cost. Rebuilds replace seals, dust boots, and sometimes pistons, returning the caliper to serviceable condition.
However, if the caliper bore is heavily pitted or the mounting points are corroded, a full replacement is safer. Rebuilding requires clean machining tolerances and access to quality seals that match the original dimensions for the Subaru Impreza.
- Rebuild when bores are smooth and housing is not compromised
- Replace when piston or bore corrosion is severe
- Ensure rebuild kits match the caliper bore size and piston type
Brake Fluid and Bleeding Considerations
Using the correct DOT-rated brake fluid and following proper bleeding procedures is essential after installing rear calipers on the Impreza. Old, contaminated fluid can reduce braking effectiveness and accelerate component wear.
Bleed from the caliper until clear fluid without air bubbles flows, and ensure the master cylinder reservoir remains topped to prevent introducing additional air into the system. Consider a full system fluid change if the fluid shows dark discoloration or has not been changed within recommended intervals.
- Use manufacturer-specified DOT fluid
- Bleed calipers until clear, bubble-free fluid emerges
- Top up and replace fluid if it is aged or contaminated
Still looking for the perfect fit?
Select your Subaru Impreza configuration to see the most relevant Brake Calipers recommendations
How We Chose the Best Subaru Impreza Rear Brake Calipers
We evaluated candidate rear brake calipers for the Subaru Impreza using objective, vehicle-specific criteria that matter for daily driving and roadside reliability. Primary evaluation factors included correct vehicle fitment and mounting geometry to ensure the caliper aligns with carrier brackets and handbrake mechanisms. We checked piston type and bore finish because sealed piston condition affects braking responsiveness and susceptibility to sticking.Corrosion resistance and coating quality were assessed since road salt and moisture commonly cause caliper seizure on this platform. Seal and dust boot materials were reviewed for longevity under typical temperature and grime exposure. We also considered whether the unit supports the factory parking brake linkage and associated hardware, and how complete each unit is in terms of included hardware and bleed fittings.Excluded items included calipers designed for other Subaru models or for modified suspension setups, units lacking explicit fitment for the Impreza, and products with unclear material or sealing specifications. Our short list favors calipers that balance serviceability, durable sealing, and correct fitment for everyday use on the Subaru Impreza.
Our full evaluation process is outlined in our review methodology.
FAQ
What are the most common brake caliper symptoms on a Subaru Impreza?
Common symptoms include a soft or spongy pedal, dragging brakes that cause premature pad wear, uneven rear pad wear, and visible fluid leaks at the caliper seals. You may also notice the car pulls to one side while braking.
Can I rebuild my Impreza rear caliper instead of replacing it?
You can rebuild rear calipers if the housing and bore are in good condition and replacement seals and pistons are available. Rebuilding is suitable when corrosion is limited, but severe pitting or damaged mounting points usually call for full replacement.
How do I know a remanufactured caliper is trustworthy for my Impreza?
Trustworthy remanufactured calipers have clear documentation of the reman process, new seals and boots, inspected or re-machined bores, and corrosion-resistant coatings. Confirm the unit explicitly lists fitment for the Subaru Impreza rear assembly.
Will replacing rear calipers require brake line replacement on the Impreza?
Not always. If the flexible brake lines are in good shape without cracking or heavy corrosion at fittings, they can often be reused. Inspect lines and banjo fittings carefully and replace any that show damage to avoid leaks.
How long should new rear calipers last on a Subaru Impreza?
Durability depends on exposure to salt, driving conditions, and maintenance. Well-coated calipers with quality seals can last many years, while units exposed to heavy road salt without protection may show issues sooner. Regular inspections help detect early problems.
Final Verdict
Prioritize correct fitment, robust sealing, and corrosion protection when selecting rear brake calipers for the Subaru Impreza. Those three factors most directly influence braking feel, pad life, and long-term reliability for daily driving and winter use.Balance serviceability and completeness of the kit against the condition of your existing hardware. If you are unsure about bore condition or mounting integrity, opt for a replacement unit that matches factory mounting and parking brake compatibility to ensure dependable braking performance.
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- Check out all Subaru Impreza parts & accessories
- Explore Brake Calipers Maintenance & Repair Guides
- Explore Brake System
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