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SKU: CSO60S-O
SPEC Steel Flywheel for 2005-2006 Volvo S40 T5 2.5L & 2004-2007 Volvo S60R 2.5L
Elevate your Volvo’s performance with the SPEC Steel Flywheel, precision-engineered for 2005-2006 Volvo S40 T5 2.5L and 2004-2007 Volvo S60R 2.5L models with stock clutch and pressure plate setups. Designed by SPEC, a trusted name in high-performance clutch and flywheel systems, this steel flywheel delivers enhanced throttle response, improved durability, and reliable power transfer for both street and track applications. Crafted to exacting standards, it ensures seamless integration with your vehicle’s drivetrain, making it the ideal choice for enthusiasts seeking performance and reliability.
Why Choose SPEC?
This flywheel is meticulously machined from high-quality steel to a .001 tolerance, ensuring a flat seating surface for the clutch and smooth rotational balance for extended engine life. Unlike lightweight aluminum flywheels, the steel construction provides a balance of performance and drivability, maintaining momentum during shifts for smoother street driving while still offering faster revs for spirited performance. It’s built to handle the demands of high-performance driving, making it a dependable choice for autocross, drag racing, or daily driving.
Fitment Details
- Year: 2005-2006 (Volvo S40 T5 2.5L), 2004-2007 (Volvo S60R 2.5L)
- Make: Volvo
- Model: S40 T5 2.5L, S60R 2.5L
- Part Number: CSO60S-O
- Compatibility: Designed for use with stock clutch and pressure plate assemblies; compatible with OE dual-mass flywheel replacements or billet flywheels made for OE clutch setups.
What’s Included in Your Purchase
- SPEC Steel Flywheel (CSO60S-O): Precision-machined steel flywheel for optimal balance and durability.
- Installation Hardware: Includes necessary flywheel bolts for a complete installation.
- Warranty: SPEC offers a 120-day limited warranty against defects in materials and workmanship, ensuring peace of mind with your purchase.
Key Specifications
- Material: High-quality steel for enhanced strength and longevity.
- Machining Tolerance: .001 for precise clutch engagement and smooth operation.
- Weight: Balanced to maintain drivability while improving engine response compared to stock flywheels.
- Application: Street, drag, autocross, and performance driving.
- Design: Non-ratcheting, compatible with OE clutch dowel pin options for secure installation.
Performance Benefits
The SPEC Steel Flywheel (CSO60S-O) enhances your Volvo’s drivetrain by reducing rotational mass compared to stock dual-mass flywheels, resulting in quicker throttle response and improved acceleration. Its robust steel construction ensures durability under high clamp loads and temperatures, making it a reliable choice for performance upgrades. The flywheel’s design supports smooth shifting, reducing RPM loss during gear changes, which is ideal for both daily drivers and performance enthusiasts.
Installation Notes
- Compatibility: Works with stock clutch and pressure plate setups or SPEC clutch kits (e.g., SO602 Stage 2, SO603 Stage 3). Verify fitment with SPEC’s catalog for non-ratcheting kits or OE clutch dowel pin options.
- Professional Installation Recommended: For best results, installation should be performed by a qualified mechanic familiar with Volvo drivetrains.
- Torque Rating: Supports up to 430-485 ft/lbs of torque when paired with compatible SPEC clutch kits, ensuring robust performance for modified vehicles.
Purchase Information
- Shipping: Free ground shipping available in the lower 48 states from select retailers. Expedited options may be offered at checkout.
- Returns: 30-day return policy for unused items in original packaging (return shipping costs may apply unless due to seller error).
Why This Flywheel Stands Out
Backed by SPEC’s reputation for quality and performance, the CSO60S-O flywheel is crafted to meet the needs of Volvo S40 T5 and S60R owners who demand reliable power delivery without sacrificing drivability. Its precision engineering and durable materials ensure long-lasting performance, making it a smart investment for your vehicle’s clutch system. Whether you’re upgrading for better street performance or preparing for the track, this flywheel delivers the balance and reliability you need.
Note: Always confirm fitment with your vehicle’s specific configuration before purchasing
Clutch Components
A performance clutch system is one of the most impactful drivetrain upgrades available for any manual transmission vehicle. From street-friendly organic disc kits to heavy-duty ceramic setups built for drag racing and track use, matching the right clutch components to your power level and driving style keeps engagement consistent and power transfer reliable.Popular UpgradesStage 1 and Stage 2 clutch kits with upgraded pressure plates and organic or hybrid friction discs are the most popular choice for street builds making 300 to 500 horsepower. Stage 3 and Stage 4 ceramic or Kevlar disc setups handle the demands of forced induction or high-compression builds. Lightweight aluminum flywheels paired with upgraded clutch kits improve rev response and make gear changes faster on both street and track applications.What clutch stage do I need for my build?Stage 1 clutches are rated for lightly modified street engines up to about 350 horsepower. Stage 2 kits cover 350 to 500 horsepower with...
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Clutch Kits - Single
Single-disc clutch kits provide everything needed to replace the core friction components in a manual transmission system in one box. A disc, pressure plate, and release bearing shipped together as a matched kit eliminates the guesswork of sourcing compatible parts separately and ensures consistent performance from break-in through the life of the clutch.Popular UpgradesStage 1 organic single-disc kits are the best choice for street-driven vehicles at stock or lightly modified power levels, offering a smooth pedal feel close to OEM. Stage 2 kits using a high-clamp pressure plate and a sprung-hub organic disc are the most popular upgrade for modified street engines in the 300 to 500 horsepower range. Stage 3 ceramic single-disc kits handle forced induction builds where heat resistance and torque capacity are the primary requirements.What does a single-disc clutch kit include?A single-disc clutch kit typically includes one friction disc, one pressure plate assembly, and one release be...
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Drivetrain
Shop drivetrain parts and accessories at Black Ops Auto Works for differentials, axles, driveshafts, clutch kits, flywheels, flexplates, shifters, transmission components, ring and pinion gears, differential braces, differential bushings, wheel hubs, wheel bearings, U-joints, valve bodies, transmission coolers, drivetrain mounts, and performance driveline upgrades. This collection is built for street cars, drag cars, track builds, trucks, Jeeps, SUVs, high-horsepower Mopar builds, imports, European performance vehicles, and off-road applications that need stronger power delivery, durability, and reliability. Use this Drivetrain collection to find the right upgrade by vehicle platform, drivetrain layout, transmission type, power level, and product category. Differentials and ring and pinion gears support traction and gearing changes, axles and driveshafts help transfer power, clutch kits and flywheels improve manual transmission performance, transmission coolers and valve bodies supp...
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SPEC
At SPEC, we are dedicated to pushing the limits of performance, safety, and strength in every product we create. Our mission is clear: to deliver only the best for motorsport enthusiasts and everyday drivers alike. Join us in experiencing the passion we put into our innovations. Why Choose SPEC? Race-Ready Performance: Designed with the needs of racers in mind, SPEC products excel under pressure. Advanced Technology: Our products, including the new stage 1 pressure plate, utilize cutting-edge materials for enhanced performance. Unmatched Durability: Crafted to maximize friction coefficient, wear life, burst resistance, and engagement quality. Trusted by Enthusiasts: As our own toughest customers, we stand by the quality and performance of our products. Experience the SPEC Advantage When you choose SPEC, you’re not just purchasing a product; you’re investing in a commitment to excellence. Our products rise above the competition, offering you: Innovative design for superior p...
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