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- Model: Sierra 2500 HD
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Differential Ring and Pinion
Description: USA Standard Gear ring and pinion sets are designed to exceed OEM specification. All sets receive rigorous in-house quality evaluation to ensure products pass dimensional, material, and fitment...More Details »
Item #: yukZG GM14T-411
Condition:
New
Price: $419.89
Differential Ring and Pinion
Description: USA Standard Gear ring and pinion sets are designed to exceed OEM specification. All sets receive rigorous in-house quality evaluation to ensure products pass dimensional, material, and fitment...More Details »
Item #: yukZG GM14T-456
Condition:
New
Price: $444.89
Item #: FDHD-ZG GM11.5-342
Condition:
New
Price: $616.89
Item #: FDHD-ZG GM11.5-373
Condition:
New
Price: $616.89
Item #: FDHD-ZG GM11.5-411
Condition:
New
Price: $634.89
Item #: FDHD-ZG GM11.5-456
Condition:
New
Price: $506.89
Item #: FDHD-ZG GM11.5-488
Condition:
New
Price: $579.89
Differential Ring and Pinion
Description: USA Standard Gear ring and pinion sets are designed to exceed OEM specification. All sets receive rigorous in-house quality evaluation to ensure products pass dimensional, material, and fitment...More Details »
Item #: yukZG GM11.5-373
Condition:
New
Price: $616.89
Differential Ring and Pinion
Description: USA Standard Gear ring and pinion sets are designed to exceed OEM specification. All sets receive rigorous in-house quality evaluation to ensure products pass dimensional, material, and fitment...More Details »
Item #: yukZG GM11.5-411
Condition:
New
Price: $634.89
Differential Ring and Pinion
Description: USA Standard Gear ring and pinion sets are designed to exceed OEM specification. All sets receive rigorous in-house quality evaluation to ensure products pass dimensional, material, and fitment...More Details »
Item #: yukZG GM11.5-456
Condition:
New
Price: $506.89
Differential Ring and Pinion
Description: USA Standard Gear ring and pinion sets are designed to exceed OEM specification. All sets receive rigorous in-house quality evaluation to ensure products pass dimensional, material, and fitment...More Details »
Item #: yukZG GM11.5-488
Condition:
New
Price: $579.89
Item #: FDHD-ZG GM9.25-342R
Condition:
New
Price: $492.89
Item #: FDHD-ZG GM9.25-373R
Condition:
New
Price: $333.89
Item #: FDHD-ZG GM9.25-411R
Condition:
New
Price: $333.89
Item #: FDHD-ZG GM9.25-456R
Condition:
New
Price: $333.89
Item #: FDHD-ZG GM9.25-513R
Condition:
New
Price: $333.89
Item #: FDHD-ZG GM9.25-538R
Condition:
New
Price: $333.89
Differential Ring and Pinion
Description: USA Standard Gear ring and pinion sets are designed to exceed OEM specification. All sets receive rigorous in-house quality evaluation to ensure products pass dimensional, material, and fitment...More Details »
Item #: yukZG GM9.25-373R
Condition:
New
Price: $333.89
Differential Ring and Pinion
Description: USA Standard Gear ring and pinion sets are designed to exceed OEM specification. All sets receive rigorous in-house quality evaluation to ensure products pass dimensional, material, and fitment...More Details »
Item #: yukZG GM9.25-456R
Condition:
New
Price: $333.89
Differential Ring and Pinion
Description: USA Standard Gear ring and pinion sets are designed to exceed OEM specification. All sets receive rigorous in-house quality evaluation to ensure products pass dimensional, material, and fitment...More Details »
Item #: yukZG GM9.25-513R
Condition:
New
Price: $333.89
Differential Ring and Pinion
Description: USA Standard Gear ring and pinion sets are designed to exceed OEM specification. All sets receive rigorous in-house quality evaluation to ensure products pass dimensional, material, and fitment...More Details »
Item #: yukZG GM9.25-538R
Condition:
New
Price: $333.89
Differential Ring and Pinion
Description: USA Standard Gear ring and pinion sets are designed to exceed OEM specification. All sets receive rigorous in-house quality evaluation to ensure products pass dimensional, material, and fitment...More Details »
Item #: yukZG GM14T-456T
Condition:
New
Price: $525.89
Differential Ring and Pinion
Description: USA Standard Gear ring and pinion sets are designed to exceed OEM specification. All sets receive rigorous in-house quality evaluation to ensure products pass dimensional, material, and fitment...More Details »
Item #: yukZG GM14T-488T
Condition:
New
Price: $444.89
Differential Ring and Pinion
Description: USA Standard Gear ring and pinion sets are designed to exceed OEM specification. All sets receive rigorous in-house quality evaluation to ensure products pass dimensional, material, and fitment...More Details »
Item #: yukZG GM14T-513T
Condition:
New
Price: $508.89
Differential Ring and Pinion
Description: USA Standard Gear ring and pinion sets are designed to exceed OEM specification. All sets receive rigorous in-house quality evaluation to ensure products pass dimensional, material, and fitment...More Details »
Item #: yukZG GM14T-538T
Condition:
New
Price: $471.89
Description: - CNC Machined Billet Aluminum Thermostatic Bypass Plug
- Black Anodized Finish
- High temperature silicone O-ring seals
- Reduces fluid flow restriction to trans cooler
- Simple Installation...More Details »
Item #: WCF100469
Condition:
New
In Stock. Ships in 3-5 business days.
Price: $61.00
Description: - Replaces failure prone plastic factory GM Heater Core Firewall Coolant Fitting
- Billet direct-fit replacement with 5/8" barb connection
- More resistant to heat and vibration
- Double...More Details »
Item #: wcfWCF100155
Condition:
New
In Stock. Ships in 3-5 business days.
1999-2023 GM BILLET COOLANT HEATER CORE FIREWALL FITTING ,2017-2018, 2500HD, 3500HD, SILVERADO ,SIERRA, L5P
Description: Replaces failure prone plastic factory GM Heater Core Firewall Coolant Fitting
- Billet direct-fit replacement with 5/8" barb connection
- More resistant to heat and vibration
- Double O-ring...More Details »
Item #: WCF100155
Condition:
New
In Stock. Ships in 3-5 business days.
Price: $42.00
Description: - CNC Machined Billet Cap is a direct OEM Replacement not a cover
- Includes new diaphragm seal
- Made in USA
- Black Anodized Finish
- Installs in seconds
- Compatible with LB7, LLY, LBZ,...More Details »
Item #: WCF100216
Condition:
New
In Stock. Ships in 3-5 business days.
Price: $45.00
Description: - CNC Machined Billet Cap is a direct OEM Replacement not a cover
- Includes new diaphragm seal
- Made in USA
- Clear Anodized Finish
- Installs in seconds
- Compatible with LB7, LLY, LBZ,...More Details »
Item #: WCF100215
Condition:
New
In Stock. Ships in 3-5 business days.
Price: $45.00
Description: Must Be Installed by an Authorized Dealer
Item #: WCF100955-PLUS, WCF100960-PLUS
Condition:
New
Price: $7,795.00
Description: Must Be Installed by an Authorized Dealer
Item #: WCF100955, WCF100960
Condition:
New
Price: $4,395.00
Description: - Fully TIG Welded 11 GA Stainless Steel Construction
- Heavy Duty 2" Driver Side Up Pipe
- Heavy Duty 2" Passenger Side Up Pipe
- Up Pipe Gaskets (4)
- Made in USA
Item #: WCF100590
Condition:
New
In Stock. Ships in 3-5 business days.
This Product cannot ship to the state of California
Price: $639.00
Description: - Fully TIG Welded 11 GA Stainless Steel Construction
- Heavy Duty 2" Driver Side Up Pipe
- Heavy Duty 2" Passenger Side Up Pipe Passenger Side Up Pipe for Compound / Twin Turbo Applications
-...More Details »
Item #: WCF100589
Condition:
New
In Stock. Ships in 3-5 business days.
This Product cannot ship to the state of California
Price: $639.00
Description: - Flows 40% Better than Stock
- True 4" Inlet Turbo Intake with smooth flowing transition to turbo compressor cover for optimized airflow and drivability
- Precision CNC Machined Cast Aluminum...More Details »
Item #: WCF100535
Condition:
New
WCFab Red, WCFab Grey, Gloss Black, and Gloss White in stock ships in 3-5 business days. All other colors 10-15 Business Day Lead Time
This Product cannot ship to the state of California
Price: $179.00
Description: - 4" Intake Pipe
- 14g Aluminum Construction
- Air Box & Lid Constructed of 10G Aluminum Sheet
- Dry Air Filter
- Outerwear's Pre-Filter Cover
- Includes Installation Hardware
- 4" Intake...More Details »
Item #: WCF100300
Condition:
New
WCFab Red, WCFab Grey, Gloss White, and Gloss Black in stock and ships in 3-5 business days. 10-15 business day lead time on
other colors.
This Product cannot ship to the state of California
Price: $639.00
Description: - MAP Sensor Bung / Weld Fitting for Custom Fabricated Intercooler Piping
- CNC Machined Billet Aluminum
- Made in USA
Item #: WCF205-35
Condition:
New
In Stock. Ships in 3-5 business days.
Price: $30.00
Description: - Fully TIG Welded, CNC machined billet steel exhaust manifolds
- Fully TIG Welded 11 GA Stainless Steel Construction Heavy Duty Up Pipes
- Manifolds finished in Black Ceramic Coat rated for...More Details »
Item #: WCF100174
Condition:
New
In Stock. Ships in 3-5 business days.
This Product Cannot Ship to the State of California
Price: $1,929.00
Description: -3" Driver Side Intercooler Pipe
-14g Mandrel Bent Aluminum Construction
-Silicone Boots
-T-Bolt Clamps
-Powder Coating
-No tuning required
Item #: WCF100349
Condition:
New
WCFab Red, WCFab Grey, and Gloss Black in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
This Product cannot ship to the state of California
Price: $315.00
Description: -NEW! Now includes 4" Intake with Fabricated Air Box & Lid Constructed of 10G Aluminum Sheet
-14G Mandrel Bent Aluminum Piping
-Premium Dry Media Air Filter
-Outerwear's Pre-Filter Cover
-T4...More Details »
Item #: WCF100478
Condition:
New
Gloss Black in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
This Product cannot ship to the state of California
Price: $3,295.00
Description: -NEW! Now includes 5" Intake with Fabricated Air Box & Lid Constructed of 10G Aluminum Sheet
-14G Mandrel Bent Aluminum Piping
-Premium Dry Media Air Filter
-Outerwear's Pre-Filter Cover
-T4...More Details »
Item #: WCF100489
Condition:
New
Gloss Black In Stock Ships in 3-5 Business Days. 10-15 business day lead time on other colors.
This Product cannot ship to the state of California
Price: $3,295.00
Description: - 5" Intake
- Dry Air Filter
- Outerwears Pre-Filter cover
- 3.5" Cold Side Charge Pipe
- 3.5" Turbo Inlet Horn
- 3" One Piece Y-bridge with HD Bead roll end
- 3" Cold Side Intercooler Pipe...More Details »
Item #: WCF100570
Condition:
New
Gloss Black in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
This Product cannot ship to the state of California
Price: $3,455.00
Description: - 3" Fabricated Y-Bridge (for OEM style intake horn)
- 3" Passenger (Cold) Side Intercooler Pipe
- 3" Driver (Hot) Side Intercooler Pipe
- 14 ga Aluminum Construction
- FPRV Block Off Kit
-...More Details »
Item #: WCF100411
Condition:
New
WCFab Red, and Gloss Black in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
This Product cannot ship to the state of California
Price: $1,179.00
Description: - 3" Fabricated Y-Bridge (for OEM style intake horn)
- 3" Passenger (Cold) Side Intercooler Pipe
- 3" Driver (Hot) Side Intercooler Pipe
- 4" Intake Pipe
- Air Box with Lid
- Dry Air Filter
-...More Details »
Item #: WCF100435
Condition:
New
WCFab Red and Gloss Black in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
This Product cannot ship to the state of California
Price: $1,855.00
Description: -3" Fabricated Billet Y-Bridge
-3" Passenger (Cold) Side Intercooler Pipe
-3" Driver (Hot) Side Intercooler Pipe
- 4" Intake Pipe
- 14g Aluminum Construction
- Air Box with Lid
- Dry Air...More Details »
Item #: WCF100712
Condition:
New
WCFab Red in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
This Product cannot ship to the state of California
Price: $2,089.00
Description: - Fully TIG Welded 11 GA Stainless Steel Construction
- Heavy Duty 2" Passenger Side Up-Pipe (Clearanced for conventional down pipes)
- Includes Up Pipe Gaskets (2)
- Made in USA
Item #: WCF100654
Condition:
New
In Stock. Ships in 3-5 business days.
This Product cannot ship to the state of California
Price: $345.00
Description: - Fully TIG Welded 11 GA Stainless Steel Construction
- Heavy Duty 2" Passenger Side Up Pipe Passenger Side Up Pipe for Compound / Twin Turbo Applications
- Full flow design eliminates clearance...More Details »
Item #: WCF100648
Condition:
New
In Stock. Ships in 3-5 business days.
This Product cannot ship to the state of California
Price: $345.00
Description: - 4" Intake Pipe
- 14g Aluminum Construction
- Air Box & Lid Constructed of 10G Aluminum Sheet
- Dry Air Filter
- Outerwear's Pre-Filter Cover
- Includes Installation Hardware
- Silicone Boot...More Details »
Item #: WCF100190
Condition:
New
WCFab Red with Standard Brushed Tag, WCFab Grey with Standard Brushed Tag, and Gloss Black with Standard Brushed Tag in stock and ships in 3-5 business days. 10-15
business day lead time on other colors.
This Product cannot ship to the state of California
Price: $545.00
Description: -Stainless Block off Plug
-5/16" Fuel Line
-5/16" Brass Tee Fitting
-Hose Clamps
Item #: WCF100023
Condition:
New
In Stock. Ships in 3-5 business days.
Price: $75.00
Item #: WCF100797
Condition:
New
In Stock. Ships in 3-5 business days. While Supplies Last!
Price: $250.00
Description: - 3" Fabricated Billet Y-Bridge (clearanced for OEM style intake horn)
- 3" Passenger Side Intercooler Pipe - 14g Mandrel Bent Aluminum Construction
- 50% more airflow than OEM upper intake...More Details »
Item #: WCF100693
Condition:
New
WCFab Red, WCFab Grey and Gloss Black in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
This Product cannot ship to the state of California
Price: $925.00
Description: - 3" Downpipe
- Heat Wrap
- High Temp Ceramic Coating
- Bolt on upgrade
- No tuning required
Item #: WCF100119
Condition:
New
In Stock. Ships in 3-5 business days.
This Product cannot ship to the state of California
Price: $245.00
Description: -Twin CP3 Pump Controller
-Wire Harness
-Connectors
Item #: WCF100093
Condition:
New
In stock. Ships in 3-5 business days.
This Product cannot ship to the state of California
Price: $259.00
Description: - 14g Aluminum Coolant Pipe
- Silicone Boots
- Stainless Steel T-Bolt Clamps
- Custom Powder Coat Finish
Item #: WCF100860
Condition:
New
WCFab Red, Gloss Black, and Gloss White in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
Price: $149.00
Description: - CNC Machined Billet Aluminum Thermostat Upper Housing
- Coolant Pipe
- Silicone Boots
- T-Bolt Clamps
Item #: WCF100405
Condition:
New
WCFab Red, WCFab Grey, Gloss Black, and Gloss White in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
Price: $489.00
Description: -Coolant Tank
-Serviceable Low Coolant Level Sensor
-Billet Anodized Cap
-Over Flow Hose
-Coolant Level Sight Glass
-Installation Hardware
-Durable Custom Powder Coat Finish
Item #: WCF100645
Condition:
New
WCFab Red, Candy Teal, Gloss White, and Gloss Black in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
Price: $489.00
Description: - MAF Bung for Custom Intakes
- CNC Machined Billet Aluminum
- Made in USA
- M4 x .7mm Thread Mounting Holes (hardware not included)
Item #: WCF205-26
Condition:
New
In Stock. Ships in 3-5 business days.
Price: $35.00
Description: - MAF Bung for Custom Intakes
- CNC Machined Billet Steel
- Made in USA
- M4 x .7mm Thread Mounting Holes (hardware not included)
Item #: WCF205-31
Condition:
New
In Stock. Ships in 3-5 business days.
Price: $39.00
Description: -Coolant Tank
-Low coolant sensor
-Cap
-Hoses
-Clamps
-Fittings
-Powder Coating
Item #: WCF100642
Condition:
New
Gloss Black and Raw in stock and ships in 3-5 business days.
Price: $379.00
Description: Fabricated tubular steel support connects rear housing of Allison transmission to transfer case reinforcing the weaker tail housing section to eliminate flex caused by driveline vibrations which...More Details »
Item #: WCF100130
Condition:
New
WCFab Red & Gloss Black in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
Price: $185.00