Product Description
Upgrade the look and reliability of your 2003-2018 Cummins-equipped Ram with the FLEECE FPE-34657-BLK-SPK 2003-2018 CUMMINS UPPER FAN PULLEY IDLER BLACK FINISH CONTRAST CUT. This billet aluminum upper fan idler pulley features Fleece Performance Engineering’s custom spoked design, a durable black anodized contrast-cut finish, and comes complete with a high-quality bearing for smooth, quiet operation. Designed specifically for 5.9L and 6.7L Cummins Ram 2500/3500 trucks, it’s the perfect upgrade when you want rock-solid belt tracking and a clean, show-quality engine bay.
Key Features
- Direct-fit billet aluminum upper fan idler pulley for 2003-2018 Cummins Ram 2500/3500 trucks
- Custom spoked Fleece design with black anodized contrast-cut finish for a premium look under the hood
- Includes pre-installed bearing for smooth, reliable belt operation
- Helps maintain proper belt alignment and cooling system performance at stock or modified power levels
- Designed to be used with the factory bolt and spacer for proper belt tracking
- Made in the USA quality from Fleece Performance Engineering
Fitment
This Fleece upper fan pulley idler fits the following Cummins-equipped trucks:
- 2003-2010 Dodge Ram 2500 5.9L / 6.7L Cummins
- 2003-2010 Dodge Ram 3500 5.9L / 6.7L Cummins
- 2011-2018 Ram 2500 6.7L Cummins
- 2011-2018 Ram 3500 6.7L Cummins
Engine family coverage: 2003-2018 5.9L & 6.7L Cummins Ram 2500/3500 diesel trucks.
Installation Notes
- Direct bolt-on replacement for the factory upper fan idler pulley
- This pulley must be used with the factory bolt and spacer; some aftermarket pulley kits change bolt/spacer length and are not compatible
- Verify belt routing and tension after installation
- Ideal when refreshing your cooling system, converting other pulleys to billet, or dressing up the engine bay
Cross-Reference & Complementary Fleece Upgrades
Build a complete, matched Fleece cooling and engine dress-up package using these related parts on CPP Diesel:
- FLEECE FPE-34658-BLK-SPK 2003-2018 UPPER FAN IDLER FOR USE WITH ELECTRIC WATER PUMPS BLACK FINISH CONTRAST CUT – upper fan idler sized specifically for electric water pump conversions.
- FLEECE FPE-34659-BLK BILLET ALUMINUM FAN DRIVE PULLEY BLACK ANODIZED FINISH – billet fan drive pulley upgrade for 2013-2018 Cummins.
- FLEECE FPE-34660-BLK 2003-2012 CUMMINS FAN DRIVE PULLEY BLACK FINISH – matching billet fan drive pulley for 2003-2012 Cummins applications.
- FLEECE FPE-CUMM-FBOP CUMMINS MECHANICAL FUEL PUMP BLOCK OFF PLATE – cleanup your block when converting to an electric lift pump.
- FLEECE FPE-GHD-67-0712 2007.5-2012 6.7L CUMMINS HIGH FLOW INTAKE PLENUM – pair your dress-up hardware with a high-flow intake plenum for better airflow.
Why Buy Your Fleece Upper Fan Pulley Idler from CPP Diesel?
- Authorized Fleece Performance Engineering dealer
- Deep Cummins platform expertise – from mild tow rigs to full competition builds
- Fast shipping and knowledgeable support for Dodge/Ram diesel customers
- Huge catalog of supporting Cummins cooling system, fuel, and turbo upgrades
Specifications for FLEECE FPE-34657-BLK-SPK
| Attribute | Value |
|---|---|
| Brand | Fleece Performance Engineering |
| Part Number | FPE-34657-BLK-SPK |
| UPC | 670875716254 |
| GTIN | 00670875716254 |
| Engine | 5.9L & 6.7L Cummins (2003-2018) |
| Vehicle Fitment | 2003-2010 Dodge Ram 2500/3500 Cummins 2011-2018 Ram 2500/3500 Cummins |
| Material | Billet aluminum |
| Finish | Black anodized, contrast cut, spoked design |
| Includes Bearing | Yes, pre-installed |
| Country of Origin | USA (as listed by distributors) |
| Shipping Weight | Approx. 1.8 lbs. |
| Package Dimensions | Approx. 6.8" L x 5.2" W x 3.5" H |
| Shipping Method | Standard ground, shipping calculated at checkout |
| Cross Reference | FPE-34658-BLK-SPK (electric water pump upper idler) FPE-34659-BLK (2013-2018 fan drive pulley) FPE-34660-BLK (2003-2012 fan drive pulley) FPE-CUMM-FBOP (mechanical fuel pump block off plate) |
| E-Codes | Not specified / not applicable |
| California Prop 65 | Yes – this product can expose you to chemicals including Styrene, which is known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov. |
FAQ
Will this Fleece upper fan pulley idler fit my 2003-2018 Cummins Ram?
Yes. The FPE-34657-BLK-SPK is designed specifically for 2003-2018 Ram 2500/3500 trucks equipped with 5.9L or 6.7L Cummins engines that retain the factory style belt drive and mechanical fan setup. Always verify belt routing and clearance on highly modified builds.
Do I need any special hardware to install this pulley?
No special hardware is required. This billet pulley is designed to use the factory bolt and spacer. If your truck previously had an aftermarket pulley that changed bolt/spacer length, you may need to return to OE hardware for correct fitment.
Is the bearing included with the pulley?
Yes. The FPE-34657-BLK-SPK comes with a high-quality bearing pre-installed, so you can bolt it on and go without sourcing any additional components.
Can I use this pulley with an electric water pump conversion?
For electric water pump conversions, Fleece recommends their dedicated upper fan idler for that configuration. On CPP Diesel, see FPE-34658-BLK-SPK for the matched electric pump application.
Is this a good upgrade for a tow rig or daily driver?
Absolutely. The billet construction and upgraded bearing provide excellent reliability for daily-driven and towing trucks, while the contrast-cut finish cleans up the engine bay for show trucks and enthusiast builds alike.
