Call: 800-417-4559
My Cart

Text Us At: 360-736-2158

Customer Service Available Monday-Friday 6am-4pm Pacific

Sale prices active NOW on some of our most popular chassis and engine upgrades!

Call: 800-417-4559

UltraStop

Featured Products

UPFORD - Ford 6.8L V10 and 7.3L V8 Ultra RV Tuner UPFORD - Ford 6.8L V10 and 7.3L V8 Ultra RV Tuner
Best Seller
Manufacturer: UltraPower Model: UPFORD
UPFORD - Ford 6.8L V10 and 7.3L V8 Ultra RV Tuner
Rev up your Ford powered RV or truck with the incredible Ford Ultra RV Tuner! This game-changing upgrade is the most cost-effective way to boost perfo..
$529.00 $599.00
In Stock
UltraPower GM / Workhorse 8.1L Custom Tuning (ECM Only) UltraPower GM / Workhorse 8.1L Custom Tuning (ECM Only)
Manufacturer: UltraPower Model: UP81
UltraPower GM / Workhorse 8.1L Custom Tuning (ECM Only)
Upgrade your GM 8.1L Powered RV or truck to unparalleled performance with the UltraPower Custom Tuned ECM! If you're looking for the best in power gai..
$595.00 $803.25
In Stock
SPW8100 - UltraPower 8.1L Magnum Spark Plug Wires SPW8100 - UltraPower 8.1L Magnum Spark Plug Wires
Best Seller
Manufacturer: UltraPower Model: SPW8100
SPW8100 - UltraPower 8.1L Magnum Spark Plug Wires
UltraPower Magnum Spark Plug Wires are patent protected because of the unique method of producing these wires which have extremely low resistance whil..
$159.99 $202.49
In Stock
105297S - Workhorse Actia Instrument Cluster *Replacement Screen Kit* 105297S - Workhorse Actia Instrument Cluster *Replacement Screen Kit*
Best Seller
Manufacturer: Brazel's RV Performance - Repair Service Model: 105297S
105297S - Workhorse Actia Instrument Cluster *Replacement Screen Kit*
This is NOT A REPLACEMENT INSTRUMENT CLUSTER! THIS IS A REPLACEMENT LCD FOR YOUR INSTRUMENT CLUSTER! Not sure if you can install yourself? Ple..
$149.00 $201.15
In Stock
9905-1028 - FRONT Ford F53 '88-Current / Tiffin Allegro Breeze '10-'13 / Entegra Aspire I-Beam (Koni EVO FSD) 9905-1028 - FRONT Ford F53 '88-Current / Tiffin Allegro Breeze '10-'13 / Entegra Aspire I-Beam (Koni EVO FSD)
Manufacturer: Koni Model: 9905-1028
9905-1028 - FRONT Ford F53 '88-Current / Tiffin Allegro Breeze '10-'13 / Entegra Aspire I-Beam (Koni EVO FSD)
Experience a smooth controlled ride on your Class A motor home with Koni EVO FSD shock absorbers. Koni's patented open intake valves ensure that you g..
$289.00 $318.50
In Stock
99B-3234SP1 - FRONT *High Force* Spartan K2, K3 MountainMaster 18K+ / Tiffin Allegro Bus w/ PowerGlide Chassis Reyco IFS (Koni EVO High Force) 99B-3234SP1 - FRONT *High Force* Spartan K2, K3 MountainMaster 18K+ / Tiffin Allegro Bus w/ PowerGlide Chassis Reyco IFS (Koni EVO High Force)
Manufacturer: Koni Model: 99B-3234SP1
99B-3234SP1 - FRONT *High Force* Spartan K2, K3 MountainMaster 18K+ / Tiffin Allegro Bus w/ PowerGlide Chassis Reyco IFS (Koni EVO High Force)
This is the High Force version of the 99B-3234. It can be used on the same applications as the 99B-3234 but it has firmer valving to provide even more..
$309.00
Out of Stock

Best Selling Products

41-101 - Iridium Spark Plug For 8.1L & 7.4L 41-101 - Iridium Spark Plug For 8.1L & 7.4L
Best Seller
Manufacturer: Workhorse Model: 41-101
41-101 - Iridium Spark Plug For 8.1L & 7.4L
Sold individually..
$10.00 $13.50
In Stock
8805-1001 - FRONT Workhorse W-Series '01-'11 (Koni FSD)
Best Seller
Manufacturer: Koni Model: 8805-1001
8805-1001 - FRONT Workhorse W-Series '01-'11 (Koni FSD)
Koni Frequency Selective Damping (FSD) shock absorbers provide superior handling characteristics without compromising ride comfort. The FSD is firm wh..
$225.00 $229.50
In Stock
W8837013 - 2004+ Workhorse Fuel Filter and Adapter Kit (3 Port) W8837013 - 2004+ Workhorse Fuel Filter and Adapter Kit (3 Port)
Best Seller
Manufacturer: Workhorse Model: W8837013
W8837013 - 2004+ Workhorse Fuel Filter and Adapter Kit (3 Port)
Compact Quality Box with Shadow .quality-box { font-family: 'Open Sans', sans-serif; background: linear-gradient(135deg, #f..
$68.75 $92.81
In Stock
105297S - Workhorse Actia Instrument Cluster *Replacement Screen Kit* 105297S - Workhorse Actia Instrument Cluster *Replacement Screen Kit*
Best Seller
Manufacturer: Brazel's RV Performance - Repair Service Model: 105297S
105297S - Workhorse Actia Instrument Cluster *Replacement Screen Kit*
This is NOT A REPLACEMENT INSTRUMENT CLUSTER! THIS IS A REPLACEMENT LCD FOR YOUR INSTRUMENT CLUSTER! Not sure if you can install yourself? Ple..
$149.00 $201.15
In Stock
Product Compare0
12L14 - J71 Park Brake Pump Hex Adapter Bushing for RGS 12L14 - J71 Park Brake Pump Hex Adapter Bushing for RGS
Manufacturer: UltraStop Model: 12L14
12L14 - J71 Park Brake Pump Hex Adapter Bushing for RGS
Part# 12L14 - J71 Park Brake Pump Hex Adapter Bushing for Rotten Green Switch Applications: Replaces the aluminum hex adapter bushing that is prone to stripping out. Made of steel for reliability. All P-Chassis 1996-2004 that use an automatic apply parking brake system with an e..
$67.45 $91.06
In Stock
15654266-US Park Brake Warning Light Pressure Switch
Manufacturer: UltraStop Model: 15654266-US
15654266-US Park Brake Warning Light Pressure Switch
15654266-US Park Brake Warning Light Pressure SwitchGM description: Switch park brake pressure indicatorApplies to 1991-1994 P chassis..
$134.89 $182.10
In Stock
410462 - J71 Park Brake Pump Spring 410462 - J71 Park Brake Pump Spring
Manufacturer: UltraStop Model: 410462
410462 - J71 Park Brake Pump Spring
Part# 410462 - J71 Park Brake Pump Spring Applications: All P-Chassis 1996-2004 that use an automatic apply parking brake system with an electricly driven hydraulic pump. Used on Parker-Oildyne electric hydraulic pump...
$8.42 $11.48
Out of Stock
412211 - Park Brake Pump Replacement Motor 412211 - Park Brake Pump Replacement Motor
Manufacturer: UltraStop Model: 412211
412211 - Park Brake Pump Replacement Motor
Part# 412211 Description: This is a Brand New Aftermarket Park Brake Pump Motor.Direct bolt on application.Matches factory part with a 1 year warranty. Applications:  1995-2003 P32 w/ J71 Auto Apply Park Brake. ..
$273.24 $310.99
In Stock
451055 - 1/4" COILED AIR BRAKE HOSE
Manufacturer: UltraStop Model: 451055
451055 - 1/4" COILED AIR BRAKE HOSE
451055  -  1/4" COILED AIR BRAKE HOSE..
$22.64 $30.56
In Stock
773776 - J71 Park Brake Pump Poppet Valve Asm 773776 - J71 Park Brake Pump Poppet Valve Asm
Manufacturer: UltraStop Model: 773776
773776 - J71 Park Brake Pump Poppet Valve Asm
Part# 773776 - J71 Park Brake Pump Poppet Valve Asm Applications: All P-Chassis 1996-2004 that use an automatic apply parking brake system with an electricly driven hydraulic pump. Used on Parker-Oildyne electric hydraulic pump...
$19.24 $25.97
In Stock
US2078 - UltraStop Park Brake Module Replacement With UltraSave Kit US2078 - UltraStop Park Brake Module Replacement With UltraSave Kit
Manufacturer: UltraStop Model: US2078
US2078 - UltraStop Park Brake Module Replacement With UltraSave Kit
Part# US2078Applications: Workhorse Custom Chassis 2005 with J72 Parking Brake Workhorse Custom Chassis W24 with J72 Parking Brake**For Workhorse Custom Chassis W18 with J72 Parking Brake please see product US2078-W18**Freightliner "FRED" Front Engine Diesel RV Chassis with Auto Apply Park Brake (Re..
$699.00 $943.65
In Stock
US2078-W18 - UltraStop Park Brake Module Replacement With UltraSave Kit (W18 Chassis) US2078-W18 - UltraStop Park Brake Module Replacement With UltraSave Kit (W18 Chassis)
New
Manufacturer: UltraStop Model: US2078-W18
US2078-W18 - UltraStop Park Brake Module Replacement With UltraSave Kit (W18 Chassis)
Designed for the 2006-2010 Workhorse W18 chassis J72 brake system which requires an additional hydraulic flex hose to be installed (WH009698) This kit is for VINs that begin with 5B4LPE7... Description: J72 Park Brake Module Replacement Kit that replaces the factory park brake controller. J72 Park..
$774.00
In Stock
US21 - UltraStop P32 Park Brake Pressure Switch Upgrade Kit US21 - UltraStop P32 Park Brake Pressure Switch Upgrade Kit
Manufacturer: UltraStop Model: US21
US21 - UltraStop P32 Park Brake Pressure Switch Upgrade Kit
Part# US21 This kit Replaces GM Part Numbers: Green Switch (At Pump) GM# 15961566 - Also AC Delco# 15034355 (Rotten Green Switch) Grey Switch (At Actuator) GM# 10218778 Applications: All P-Chassis 1996-2004 that use an automatic apply parking brake sys..
$219.00 $295.65
In Stock
US21.5 - UltraStop P32 Park Brake 70 Amp Relay And Bushing Kit
Manufacturer: UltraStop Model: US21.5
US21.5 - UltraStop P32 Park Brake 70 Amp Relay And Bushing Kit
This Kit Includes:Workhorse 70 Amp Relay #W800202412L14 Steel Bushing that replaces aluminum bushing that the pump pressure switch is mounted to. Applications:All P32 RV 1996-2004 that use an automatic apply parking brake system with an electrically driven hydraulic pump. I..
$98.76 $133.33
Out of Stock
US21A - UltraStop P32 Upgraded Park Brake Actuator Pressure Switch US21A - UltraStop P32 Upgraded Park Brake Actuator Pressure Switch
Manufacturer: UltraStop Model: US21A
US21A - UltraStop P32 Upgraded Park Brake Actuator Pressure Switch
Part# US21A This kit Replaces GM Part Numbers: GM# 10218778 Workhorse Part# W8001071 Applications: All P-Chassis 1996-2004 that use an automatic apply parking brake system with an electrically driven hydraulic pump. Feature..
$119.00 $160.65
In Stock
US21P - UltraStop P32 Upgraded Park Brake Pump Pressure Switch US21P - UltraStop P32 Upgraded Park Brake Pump Pressure Switch
Manufacturer: UltraStop Model: US21P
US21P - UltraStop P32 Upgraded Park Brake Pump Pressure Switch
Part# US21P This kit Replaces GM Part Numbers: GM# 15961566 AC Delco# 15034355  Workhorse Part# W8001073 Applications: All P-Chassis 1996-2004 that use an automatic apply parking brake system with an electri..
$119.00 $160.65
In Stock
Showing 1 to 12 of 16 (2 Pages)
We use cookies and other similar technologies to improve your browsing experience and the functionality of our site. Privacy Policy.
Merchant Reviews