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800.979.0122

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Wilwood 260-1874 Blue Disc Brake Residual Valve, 2 PSI

Specs
Material Type:
Aluminum
Sold in Quantity:
Each
Finish:
Anodized
Pressure Rating:
2 psi
Outlet Fitting:
1/8" NPT
MFG. Part #:
260-1874
Garage Sale:
No
Overall Length:
1.60
Overall Diameter:
.63
Wilwood 260-1874 Blue Disc Brake Residual Valve, 2 PSI
Product Video
Wilwood 260-1874 Blue Disc Brake Residual Valve, 2 PSI

Click image to enlarge

Watch the video below to learn more about the differences in brake lines, flare types and fittings you may want to consider before plumbing away on your current chassis project.

Details

Reviews

Q & A

What's in the Box

These in-line pressure valves retain a minimum brake line pressure to help eliminate excessive pedal travel in disc brake systems. Residual pressure valves are made from billet aluminum with 1/8" npt female threads for the inlet/outlet and color coded for easy identification. Ideal for drag racing, circle track, street rod and many off road applications.

The two pound valve is used in disc brake applications where the master cylinder is mounted below the horizontal plane of the calipers and fluid drain back occurs from gravity and vibration, thereby causing excessive caliper piston retraction and a longer brake pedal stroke. The minimal two pound residual pressure prevents fluid from flowing back without causing the brakes to drag.

835-2601874 Instructions (PDF)

Brake System Builders Tip (Link)

Learn more about the proper uses of residual valves by reading our tech article. Brake System Selection

Item Details

Disc Brakes

Customer Reviews

Rated 5 out of 5 by 8 reviewers.
RATING BREAKDOWN
8 reviews
5 Stars
8
4 Stars
0
3 Stars
0
2 Stars
0
1 Star
0
RECOMMEND THIS PRODUCT:

skidlid
Verified Purchaser
taft ca

works very well

April 06, 2015
installed on front brake line as directed and it works well to minimize the amount of brake pedal effort to lock the front wheel and help the car set up for corner entry.
Pros:
  • Easy To Install
Cons:
  • None
Yes, I recommend this product.
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Bucksss12
Verified Purchaser

well made product.

August 24, 2014
This was easy to install in my built-up 49 Studebaker truck brake system
Yes, I recommend this product.
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Taboma
Marietta, GA, USA

Excellent Product, easy to install.

September 29, 2013
I have a 1940 Ford coupe with Mustang II front suspension with disc brakes and an 8" Ford rear end with drum brakes. I used a Corvette duel master cylinder with the 7/8" bore. I wasn't satisfied with the braking action so I purchase 2 valves, one for front disc & one for the rear drum. What a difference it made. This is a great product from a great company. I see their stuff on TV all the time. The pros recommend their products and I do too.
Pros:
  • great product.
Yes, I recommend this product.
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Pecdaddy
Las Vegas, NV, USA

Wilwood

September 19, 2013
Used on my hot rod Model A brakes. Fit right in line.
Yes, I recommend this product.
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RFord
Verified Purchaser
Greenville, SC

I would buy this product again

September 15, 2011
I had about an inch of free travel on my brake pedal on a '32 Roadster. I installed the residual valve and it solved the problem. Now my brake pedal is solid at the top. Wilwood said I didn't need one but I sure did.
Pros:
  • Problem
Yes, I recommend this product.
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ulrace
springfield, ohio

wilwood residual valves

December 08, 2010
Lasts forever and really helps braking performance. Don't overlook this detail.
Yes, I recommend this product.
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vega dug
webster n.y.

valve worked great.

May 14, 2010
did just what it was made to do.
Yes, I recommend this product.
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AWW Restoration
Gaylord, MI

Great buy, made the breaks fast reacting

April 04, 2010
This product is a must for any high performance break system, with a 2 psi in the front and the 10 psi in the rear the system is fast reacting and a great solid petal
Pros:
  • Easy Install
  • Well made product
Yes, I recommend this product.
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Page 1 of 1

Product Q&A

2 questions : 2 answers

1 answers

Are all your brake parst DOT5 Compatable? I bought a complete brake system from your catalogue and have finally assembled it. Now I have to bleed it . I bought almost a complete brake system from your catalogue and have finally assembled it. I would like to know if all your brake parts are DOT5 (silicone brake fluid) compatable before I bleed it out> Thanks, Gord

Strogy
Ontario, Canada
January 03, 2013

Are all your brake parst DOT5 Compatable? I bought a complete brake system from your catalogue and have finally assembled it. Now I have to bleed it . I bought almost a complete brake system from your catalogue and have finally assembled it. I would like to know if all your brake parts are DOT5 (silicone brake fluid) compatable before I bleed it out> Thanks, Gord

Answers

January 04, 2013
Jason
Speedway recommends the use of DOT 3, 4 or 5.1 fluid but if system is new and never had fluid in it DOT 5 fluid can be used. Silicone fluid should be used only to fill non-ABS systems that have not been previously filled with glycol based fluid. Glycol-ether (DOT 3, 4, and 5.1) brake fluids are hygroscopic (water absorbing), which means they absorb moisture from the atmosphere under normal humidity levels. Non-hygroscopic fluids (e.g. silicone/DOT 5-based formulations), are hydrophobic, and can maintain an acceptable boiling point over the fluid's service life, although at the cost of potential phase separation/water pooling and freezing/boiling in the system over time - the main reason single phase hygroscopic fluids are used.
1 answers

does this reduce brake pressure or delay it

hogansburg ny
March 16, 2012

does this reduce brake pressure or delay it

Answers

March 16, 2012
Eric
No a residual valve will not reduce brake pressure or delay it.
Page 1 of 1

You may also be interested in:

Disc Brake Residual Pressure Valve, 1/8 NPT, 2 PSI
(Part #91031340)
                        

Ever had problems with a spongy pedal or slow, unresponsive brakes? If so, you may need a residual pressure valve installed in your brake line. A redesidual valve acts like a one-way or check valve to maintain brake system pressure to eliminate the problems of a spongy pedal. This 2 PSI residual valve is installed inline between the master cylinder and disc brake calipers to keep 2 PSI of residual pressure at the caliper after the brake pedal is released. This ensures that you will have a high, firm pedal next time you press the brake pedal.

If your master cylinder is located below the floorboard, installing a 2 PSI residual valve is highly recommended. If your master cylinder is mounted on the firewall, a residual valve is generally not needed because gravity will provide a natural residual pressure within the brake line.

Valve is 1/8" NPT male on the inlet side and 1/8" NPT female on the outlet side. Use 2 PSI residual valves for disc brake applications only.

Brake System Builder's Tip (Link)

Learn more about the proper uses of residual valves by reading our tech article. Brake System Selection.  

Speedway Disc Brake Residual Valve, 2 PSI, Purple
(Part #91031345)
                        

Ever had problems with a spongy pedal or slow, unresponsive brakes? If so, you may need a residual pressure valve installed in your brake line. A residual valve acts like a one-way or check valve to maintain brake system pressure to eliminate the problems of a spongy pedal. This 2 PSI residual valve is installed inline between the master cylinder and disc brake calipers to keep 2 PSI of residual pressure at the caliper after the brake pedal is released. This ensures that you will have a high, firm pedal next time you press the brake pedal.

If your master cylinder is located below the floorboard, installing a 2 PSI residual valve is highly recommended. If your master cylinder is mounted on the firewall, a residual valve is generally not needed because gravity will provide a natural residual pressure within the brake line.

Our residual pressure valve features a distinctive purple anodized finish with 1/8" NPT port at each end. Use 2 PSI residual valves for disc brake applications only.  Inverted flare or AN threaded adapter fittings to the 1/8" NPT female thread will be required and are noted below and available as required.

Speedway Drum Brake Residual Valve, 10 PSI, Purple
(Part #91031347)
                        

Ever had problems with a spongy pedal or slow, unresponsive brakes? If so, you may need a residual pressure valve installed in your brake line. A redesidual valve acts like a one-way or check valve to maintain brake system pressure to eliminate the problems of a spongy pedal. This 10 PSI residual valve is installed inline between the master cylinder and drum brake wheel cylinders to keep 10 PSI of residual pressure at the wheel cylinder after the brake pedal is released. This ensures that you will have a high, firm pedal next time you press the brake pedal.

Our residual pressure valve features a distinctive purple anodized finish with a 1/8" NPT port at each end. Use 10 PSI residual valves for drum brake applications only.  Inverted flare or AN threaded adapter fittings to the 1/8" NPT female thread will be required and are noted below and available as required.

 
Learn more about the proper uses of residual valves by reading our tech article. Brake System Selection.  
Speedway Disc Brake Residual Valve, 2 PSI, Polished
(Part #91031346)
                        

Ever had problems with a spongy pedal or slow, unresponsive brakes? If so, you may need a residual pressure valve installed in your brake line. A redesidual valve acts like a one-way or check valve to maintain brake system pressure to eliminate the problems of a spongy pedal. This 2 PSI residual valve is installed inline between the master cylinder and disc brake calipers to keep 2 PSI of residual pressure at the caliper after the brake pedal is released. This ensures that you will have a high, firm pedal next time you press the brake pedal.

If your master cylinder is located below the floorboard, installing a 2 PSI residual valve is highly recommended. If your master cylinder is mounted on the firewall, a residual valve is generally not needed because gravity will provide a natural residual pressure within the brake line.

Our residual pressure valve features a fully polished finish with a 1/8" NPT port at each end. Use 2 PSI residual valves for disc brake applications only.

 
Learn more about the proper uses of residual valves by reading our tech article. Brake System Selection.  
Wilwood 260-3278 Residual Pressure Valve with Fittings
(Part #8352603278)
                        
These in-line pressure valves retain a minimum brake line pressure to help eliminate excessive pedal travel in disc brake systems. Residual pressure valves are made from billet aluminum with 1/8" npt female threads for the inlet/outlet and color coded for easy identification. Ideal for drag racing, circle track, street rod and many off road applications.

The two pound valve is used in disc brake applications where the master cylinder is mounted below the horizontal plane of the calipers and fluid drain back occurs from gravity and vibration, thereby causing excessive caliper piston retraction and a longer brake pedal stroke. The minimal two pound residual pressure prevents fluid from flowing back without causing the brakes to drag.

  • Inlet Size: 1/8-27 NPT
  • Inlet Fit: 3/8-24 IF Female
  • Outlet Size: 1/8-27 NPT 
  • Outlet Fit: 3/8-24 IF Female
  • Rate: 2 lbs.

Instructions (PDF)

Brake System Builder's Tip (Link)

Learn more about the proper uses of residual valves by reading our tech article. Brake System Selection

Wilwood 260-3279 Red Residual Pressure Valve with Fittings, 10 PSI
(Part #8352603279)
                        These in-line pressure valves retain a minimum brake line  pressure to  help eliminate excessive pedal travel in disc brake systems.  Residual  pressure valves are made from billet aluminum with 1/8" npt  female  threads for the inlet/outlet and color coded for easy  identification.  Ideal for drag racing, circle track, street rod and many  off road  applications. 

The ten pound valve is used in disc brake applications where the master cylinder is mounted below the horizontal plane of the calipers and fluid drain back occurs from gravity and vibration, thereby causing excessive caliper piston retraction and a longer brake pedal stroke. The minimal ten pound residual pressure prevents fluid from flowing back without causing the brakes to drag.

  • Inlet Size: 1/8-27 NPT
  • Inlet Fit: 3/8-24 IF Female
  • Outlet Size: 1/8-27 NPT 
  • Outlet Fit: 3/8-24 IF Female
  • Rate: 10 lbs.

Instructions (PDF)

Brake System Builder's Tip (Link)

Learn more about the proper uses of residual valves by reading our tech article. Brake System Selection

Straight 3/8 Inch-24 IFF to 1/8 Inch NPT Male Adapter
(Part #91031831)
                        

Brass adapter.

Straight 3/8"-24 IFF to 1/8" NPT Male Adapter

Wilwood 260-1876 Red Drum Brake Residual Valve, 10 PSI
(Part #8352601876)
                        With drum brakes, a ten pound valve is used to compensate for return spring tension in the drums. Features 1/8” pipe thread inlet and outlet you must a brake line adaptor sold separately. Most residual valves are color coded blue for 2 psi and red for 10 psi. An RPV DOES NOT cause brake drag, or cause the rear brakes to lock-up first!  

For in-line use in drum brake applications. 1/8" female NPT inlet/outlet.

Residual Pressure Valve Instructions (PDF)

Brake System Builders Tip (Link)

Valve Dimensions Diagram 

Learn more about the proper uses of residual valves by reading our tech article. Brake System Selection.  

Item Details

Drum Brakes