Automotive Replacement Brake Pad Shims are critical components designed to prevent brake noise, dissipate heat, and dampen vibrations between the brake pad and caliper. These thin plates contribute significantly to a quiet and consistent braking experience, protecting other brake system parts from premature wear. Products were evaluated based on material composition, fitment accuracy, noise reduction capabilities, durability, user reviews, and feature analysis.
Genuine Toyota 04945-04012 Front Brake Pad Kit
$26.95
This Genuine Toyota OEM kit offers reliable fitment and performance for a wide range of older Toyota models, backed by a manufacturer warranty.
Search on AmazonCentric Parts 300.08220 Semi Metallic Brake Pad with Shim
Centric Parts semi-metallic pads with shims provide a widely available and typically cost-effective solution for everyday braking needs.
Search on AmazonBOSCH BE967H Blue Ceramic Disc Brake Pad Set with Hardware - Compatible with Select Chrysler Aspen; Dodge Durango, Ram 1500, Ram 1500 Van; Ram 1500, Ram 1500 Classic; REAR
$24.39
The BOSCH Blue Ceramic set features advanced friction materials, multi-layer shims for quiet operation, and rust protection, indicating a high-performance offering.
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- For REAR calipers (also front for 2007-2008 GT3) with 28mm pistons.
- Does NOT fit Boxster with M450 Ceramic Brake Disc option.
- Sold individually.
- Manufactured to OE dimensions for superb fitment and quiet operation
- High-quality materials to resist intense braking heat and harsh road weathering
- Disc brake pad shims should be replaced whenever pads are replaced
- 24-Month / Unlimited Mileage Warranty
- High Quality: Zinc plated to resist rust and corrosion, not easy to break or fade, sturdy, and durable for long time use
- Various Sizes: The 152 pcs Kit includes 4 sizes 56pcs x 1/64", 48pcs x 1/32", 24pcs x 1/16", 24pcs x 1/8"
- Application: Used for adjusting Body Parts or camber, caster and toe at the front or rear wheels
- Packing: Packed in a durable transparent storage box with label, saves your time of running around looking for a particular size
- Customer Service: Whenever you need us, please free to contact us, we will give you a professional service
- Part number: 04946-30100
- Fit type: Vehicle Specific
- Oem equivalent part number: 04946-30100
- Included components: Genuine Toyota Parts - Shim Kit, Anti Squea (04946-30100)
- Integrally molded to backing plate for bond integrity
- Premium shims, slots, and chamfers can help to dimish noise, vibration, and braking harshness
- Stamped backing plate allows for proper pad movement within the caliper assembly, help reduce noise, brake pulsation, and helps to protect against premature wear
- Tested to SAE J2784 for braking effectiveness, along with Noise/Vibration/Harshness (NVH) and durability/wear testing
- Select Gold hardware includes nitrile coated material to help reduce noise
- Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
- Premium aftermarket replacement part
- Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models
- [THE BOSCH ADVANTAGE] - The Bosch QuietCast line draws on over 77 years of OE braking excellence; promising the highest quality performance, industry-leading strength and durability, and exclusive innovations including Molded Shim Technology (MST)
- [QUIETER STOPS] - The industry's best pre-attached OE style multilayer rubber core shims ensure the highest quality bond between rubber and steel, resulting in lower noise, increased strength, and corrosion resistance
- [EXCEPTIONAL FRICTION MATERIAL] - Rigorously formulated and tested by Bosch engineers, the Ceramic friction material in the QuietCast line is meticulously engineered for robust performance, exceptional stopping power, and quiet, low dust operation
- [BOSCH DURABILITY] - Powder-coated backing plate prevents rust and corrosion for increased product life of the brake pad; Slots and chamfers ensure premium quality, fit, and function
- [READY TO INSTALL] - Set includes pads for 1 axle (2 wheels), hardware kit (where available), and synthetic lubricant for reduced resistance on sliding contact points
- FRONT: Compatible with select vehicles (Note: vehicle trim level/engine may affect fitment - verify specific vehicle fitment details with fit checker above): JEEP: 1999-04 Grand Cherokee
- [THE BOSCH ADVANTAGE] - The Bosch QuietCast line draws on over 77 years of OE braking excellence; promising the highest quality performance, industry-leading strength and durability, and exclusive innovations including Molded Shim Technology (MST)
- [QUIETER STOPS] - The industry's best pre-attached OE style multilayer rubber core shims ensure the highest quality bond between rubber and steel, resulting in lower noise, increased strength, and corrosion resistance
- [EXCEPTIONAL FRICTION MATERIAL] - Rigorously formulated and tested by Bosch engineers, the Ceramic friction material in the QuietCast line is meticulously engineered for robust performance, exceptional stopping power, and quiet, low dust operation
- [BOSCH DURABILITY] - Powder-coated backing plate prevents rust and corrosion for increased product life of the brake pad; Slots and chamfers ensure premium quality, fit, and function
- [READY TO INSTALL] - Set includes pads for 1 axle (2 wheels), hardware kit (where available), and synthetic lubricant for reduced resistance on sliding contact points
- FRONT: Compatible with select vehicles (Note: vehicle trim level/engine may affect fitment - verify specific vehicle fitment details with fit checker above): MAZDA: 2014-18 3, 2014-18 3 Sport
- PLEASE CONFIRM YOUR FITMENT: Using the Amazon Confirmed Fit bar at the top of the page or check the Product Description to confirm your vehicle fitment
- A FULL REPLACEMENT IN ONE BOX: (2) Front Z17 Ceramic Brake Pads | Installation Hardware
- FAST, QUIET STOPPING POWER: Z17 Brake Pads are designed for smooth, noise-free braking, these ceramic brake pads are thermal scorched, chamfered, and slotted for quick break-in and consistent performance
- RELIABLE, LOW-DUST BRAKING: Multi-Layer rubberized shims provide virtually noise-free braking. Low Dust Ceramic reduces dust build up to keep your wheels clean
- PERFORMANCE PROTECTION WARRANTY: This comes with a 12 Month / 12,000 Mile Limited Warranty
This article is part of our complete guide Tires & Parts — browse all our comparisons and buying guides.
Last update on 2026-08-31 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Automotive Replacement Brake Pad Shims
Understanding Material Composition and Performance
The material composition of brake pad shims, often integrated with the brake pads themselves, plays a crucial role in braking performance and noise reduction. For instance, products like the BOSCH BE967H Blue Ceramic Disc Brake Pad Set feature advanced, platform-specific ceramic friction material, which typically results in quieter operation and less dust compared to traditional semi-metallic options. Ceramic materials are known for their excellent heat dissipation properties, contributing to consistent braking performance even under varying temperatures. In contrast, a product like the Centric Parts 300.08220 Semi Metallic Brake Pad with Shim utilizes a semi-metallic compound. While semi-metallic pads often provide strong initial bite and can be more aggressive, they may produce more brake dust and can be noisier without effective shims. Users should consider their driving style and vehicle's requirements when choosing between these material types, as the shim's effectiveness is often tied to the pad's inherent characteristics.
Ensuring Precise Fitment and Application Specificity
Correct fitment is paramount for brake pad shims to function as intended, preventing noise and ensuring proper brake operation. OEM parts, such as the Genuine Toyota 04945-04012 Front Brake Pad Kit or the Toyota Tacoma 2005-2020 4x4 PreRunner Front Brake Pads Shims & Rear Shoes Kit, are engineered to precise specifications for their designated vehicle models and years. This ensures that the shims align perfectly with the brake pads and caliper assembly, minimizing potential for movement and associated noise. Similarly, specialized aftermarket options like the URO Parts 99635208600 Brake Pad Shim explicitly state their fitment for 'rear calipers with 30mm pistons' and specific Porsche models, highlighting the importance of matching the shim to the exact caliper and piston size. Mismatched shims can lead to rattling, uneven pad wear, or reduced braking efficiency, underscoring the need to verify compatibility thoroughly before purchase.
Noise and Vibration Dampening Capabilities
One of the primary functions of brake pad shims is to dampen noise and vibrations. Different designs and materials are employed to achieve this. The BOSCH BE967H Blue Ceramic Disc Brake Pad Set, for example, incorporates 'original equipment style multi-layer shims' on the back of the pads, specifically designed for exceptional noise dampening. These multi-layer designs typically combine different materials, such as rubber and steel, to absorb high-frequency vibrations that cause squealing. Similarly, the 'Rubber Steel Rubber Shims Included' with R1 Concepts Front Ceramic Brake Pads indicate a layered approach to noise reduction. Products lacking these advanced shim designs, or using simpler, single-layer shims, may not offer the same level of quietness in practice. When evaluating shims, particularly for vehicles prone to brake noise, prioritizing those with advanced, multi-layer or specific noise-dampening features is often beneficial.
Pros & Cons
Genuine Toyota 04945-04012 Front Brake Pad Kit
Pros
- Offers OEM fitment ensuring precise compatibility with specified Toyota models.
- Backed by a manufacturer's warranty, providing a level of assurance.
- Engineered to original equipment standards for consistent performance.
Cons
- Compatibility is limited to a specific range of older Toyota vehicles.
- Typically represents a higher investment compared to many aftermarket alternatives.
URO Parts 99635208600 Brake Pad Shim, Fits 30mm piston
Pros
- Precision-engineered for specific Porsche rear calipers with 30mm pistons.
- Designed to meet the demands of high-performance automotive applications.
- Provides exact fitment for premium European vehicle models.
Cons
- Excludes vehicles with the I450 Ceramic Brake Disc option, limiting its use.
- Extremely narrow vehicle compatibility, suitable only for very specific Porsche configurations.
BOSCH BE967H Blue Ceramic Disc Brake Pad Set with Hardware - Compatible with Select Chrysler Aspen; Dodge Durango, Ram 1500, Ram 1500 Van; Ram 1500, Ram 1500 Classic; REAR
Pros
- Features advanced, platform-specific ceramic friction material for optimal performance.
- Includes original equipment style multi-layer shims for exceptional noise dampening.
- Incorporates a rust inhibitive coating on backing plates for enhanced durability and corrosion protection.
Cons
- Compatibility is limited to select Chrysler, Dodge, and Ram models, requiring careful verification.
- While offering quiet stops, actual performance can vary based on vehicle and driving conditions.
Common Mistakes to Avoid
Overlooking Specific Vehicle Fitment
A common mistake involves assuming universal compatibility for brake pad shims, leading to incorrect part selection. For instance, the URO Parts 99635208600 Brake Pad Shim is explicitly 'For rear calipers with 30mm pistons' and a very specific list of Porsche models. Similarly, the Genuine Toyota 04945-04012 Front Brake Pad Kit is listed for a precise range of Toyota 4Runner, Land Cruiser, and other models from specific years. Failing to match these details, including the exact make, model, year, and often the trim level or caliper type, will result in shims that do not fit correctly or perform as intended.
Ignoring Caliper and Piston Specifications
Another frequent oversight is neglecting the specific caliper and piston requirements of the brake system. The URO Parts 99635208600 shim clearly states it 'Fits 30mm piston', indicating that piston diameter is a critical dimension. Using a shim designed for a different piston size can lead to improper seating, excessive noise, or even compromised braking effectiveness. Similarly, the BOSCH BE967H Blue Ceramic Disc Brake Pad Set is 'Compatible with Select Chrysler Aspen; Dodge Durango, Ram 1500', implying a specific caliper design for those platforms. Users must verify their vehicle's caliper type and piston size to ensure shim compatibility.
Disregarding Material Compatibility and Special Options
Users sometimes overlook material compatibility or special vehicle options, leading to performance issues. The URO Parts 99635208600 explicitly states it 'Does NOT fit cars with I450 Ceramic Brake Disc option'. This highlights that some shims are incompatible with specific braking system configurations, such as those with ceramic brake rotors. Attempting to use incompatible shims can damage the brake system or severely reduce braking performance. Furthermore, if a vehicle originally came with 'platform specific friction material' as offered by Bosch Blue, deviating significantly without considering shim type might compromise the intended noise and wear characteristics.
