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Please do not hesitate to contact us for additional information about any of the products you see here, about product not currently included here, for advice or assistance with a particular project, with volume orders and special requests, or to simply provide us with your comments and suggestions...

PAI LQV-5697 MACK 745-229505 LQ-2 FRONT AXLE VALVE (229505) | woodlineparts.com Quick View
PAI Industries®

PAI LQV-5697 MACK 745-229505 LQ-2 FRONT AXLE VALVE (229505)

$306.48

PAI LQV-5697
Air & Electrical Air Brake Parts Mack & Volvo PAI
Product Details : Select Mack® Applications : LQ-2 Front Axle Valve (2 Delivery Ports 3/8"-18) (1 Control Port 1/4"-18 NPT) (1 Supply Port (3/8"-18...
-11%
PAI LRV-3401 MACK 800481 R-12DC RELAY VALVE (20QE4173, 745-800481) | woodlineparts.com Quick View
PAI Industries®

PAI LRV-3401 MACK 800481 R-12DC RELAY VALVE (20QE4173, 745-800481)

$271.98 $241.33

PAI LRV-3401
Air & Electrical Air Brake Parts Air Valves & Kits Mack & Volvo PAI
Product Details : Select Mack® Applications : R-12DC Relay Valve. (2) 1/2in Supply Ports, (2) 1/2in Horizontal Delivery Ports, (2) 3/8in Vertical Delivery Ports,...
-11%
PAI LRV-3444 MACK 116451P RELAY VALVE Quick View
PAI Industries®

PAI LRV-3444 MACK 116451P RELAY VALVE

$193.28 $171.50

PAI LRV-3444
Air & Electrical Air Brake Parts Air Valves & Kits Mack & Volvo PAI
PAI LRV-3444 MACK 116451P RELAY VALVE Product Details : Select Mack® Applications : 6 Port, (5) 3/8in-18 Delivery Ports, (1) 3/8in-18 Control Port, (1)...
-11%
PAI LRV-3507 MACK 745-103010 RELAY VALVE (745-103834, 1677540C91) Quick View
PAI Industries®

PAI LRV-3507 MACK 745-103010 RELAY VALVE (R-14H) (4 PSIG) (ALUMINUM)

$137.65 $122.14

PAI LRV-3507
Air & Electrical Air Brake Parts Air Valves & Kits Mack & Volvo PAI
PAI LRV-3507 MACK 745-103010 RELAY VALVE (R-14H) (4 PSIG) (ALUMINUM) Product Details : Select Mack® Applications : Relay Valve (R-14H, (2) 3/4in-14 Supply Ports,...
-11%
PAI LRV-3589 MACK 20QE401R RELAY VALVE Quick View
PAI Industries®

PAI LRV-3589 MACK 20QE401R RELAY VALVE (Current ETA is 7-10 Business Days ARO)

$323.30 $286.88

PAI LRV-3589
Air & Electrical Air Brake Parts Air Valves & Kits Mack & Volvo PAI
PAI LRV-3589 MACK 20QE401R RELAY VALVE Product Details : Select Mack® Applications : Relay Valve (R-14H) ((1) 1/2in-14 Supply Port, (2) 1/2in-14 Delivery Ports,...
-11%
PAI LRV-3596 MACK 745103009 RELAY VALVE (KN28140) (MADE IN USA) Quick View
PAI Industries®

PAI LRV-3596 MACK 745103009 RELAY VALVE (KN28140) (USA)

$112.89 $100.17

PAI LRV-3596
Air & Electrical Air Brake Parts Air Valves & Kits Mack & Volvo PAI
PAI LRV-3596 MACK 745103009 RELAY VALVE (KN28140) (MADE IN USA) Product Details : Select Mack® Applications : Relay Valve, R-12H, (2) 3/4in-14 Supply Ports,...
-11%
PAI LRV-3612 MACK 5396-KN28510 RELAY VALVE (RG-2) (6 PSIG) (KN28510) (USA) Quick View
PAI Industries®

PAI LRV-3612 MACK 5396-KN28510 RELAY VALVE (RG-2) (6 PSIG) (KN28510) (USA)

$153.46 $136.17

PAI LRV-3612
Air & Electrical Air Brake Parts Mack & Volvo PAI
PAI LRV-3612 MACK 5396-KN28510 RELAY VALVE (RG-2) (6 PSIG) (KN28510) (USA) Product Details : Select Mack® Applications : Relay Valve (RG-2) ((1) 3/8"-18 Supply...
-11%
PAI LRV-3613 MACK 745-102626 R-12 RELAY VALVE (RG-2) (4 PSIG) Quick View
PAI Industries®

PAI LRV-3613 MACK 745-102626 R-12 RELAY VALVE (RG-2) (4 PSIG)

$112.89 $100.17

PAI LRV-3613
Air & Electrical Air Brake Parts Air Valves & Kits Mack & Volvo PAI
PAI LRV-3613 MACK 745-102626 R-12 RELAY VALVE (RG-2) (4 PSIG) Product Details : Select Mack® Applications : R-12 Relay Valve (RG-2) ((1) 1/2in Supply...
PAI LRV-3617 MACK 745-280375 RE-6 RELAY VALVE (280375) Quick View
PAI Industries®

PAI LRV-3617 MACK 745-280375 RE-6 RELAY VALVE (280375)

$182.60

PAI LRV-3617
Air & Electrical Air Brake Parts Air Valves & Kits Mack & Volvo PAI
Product Details : Select Mack® Applications : Relay Valve (RE-6) ((1) 1/2" Supply Port, (4) 3/8" Delivery Ports, (1) 1/4" Service Port). OEM Reference...
-11%
PAI EM36370 MACK 5396-KN28500 RG-2 AIR BRAKE RELAY VALVE (6 PSIG) Quick View
PAI Industries®

PAI LRV-3637 MACK 5396KN28500 RG-2 AIR BRAKE RELAY VALVE (6 PSIG)

$144.40 $128.13

PAI LRV-3637
Air & Electrical Air Brake Parts Mack & Volvo PAI
Product Details : Select Mack® Applications : Air Brake Relay Valve (RG-2) (2) 3/8"-18 Supply Ports, (2) 3/8"-18 Delivery Ports, (1) 1/4"-18 Control Port)...
-11%
PAI LRV-3639 MACK 5396-KN28060 RELAY VALVE (R-5) (229467, 455975C92) (USA) Quick View
PAI Industries®

PAI LRV-3639 MACK 5396-KN28060 RELAY VALVE (R-5) (229467, 455975C92) (USA)

$270.48 $240.00

PAI LRV-3639
Air & Electrical Air Brake Parts Mack & Volvo PAI
Product Details : Select Mack® Applications : Universal usage. Relay Valve (R-5) (Opens at 4.6 PSI) (Horizontal Delivery Ports (2) 3/8"-18 NPT) (Reservoir Ports...
-11%
PAI LST-3434 MACK 1MR2414A LOW PRESSURE SWITCH (NC) (ADJUSTABLE) (CH) | woodlineparts.com Quick View
PAI Industries®

PAI LST-3434 MACK 1MR2414A LOW PRESSURE SWITCH (NC) (ADJUSTABLE) (CH)

$23.02 $20.42

PAI LST-3434
Air & Electrical Air Brake Parts Mack & Volvo PAI
Product Details : Select Mack® Applications : CH Models. Low Pressure Switch (Normally Closed 0 PSIG) (Opens at 70 PSIG) (Fully Adjustable to 5...
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By cooperating with us, you can take advantage of our Unique, Focused, Honest Experience & Extensive Inventory Resources for New, Surplus, Rebuilt, Good-Running and Used Diesel Engines, Marine Transmissions, Engine Parts, Components and Kits, as well as thousands of Premium Quality Service Parts manufactured for and distributed to the Heavy Duty Truck Market, with heavy focus on U.S.A. production. We specialize in Detroit Diesel, Cummins, Caterpillar, Mack, Navistar, Twin Disc & other Heavy Duty, Premium, Proven, Industry-Leading Brands. You may view select inventory here but always feel free to contact us for more information.

We offer extensive coverage of Detroit Diesel 2 Cycle Engines and Accessories as well as for many of today’s most popular engines in multiple applications. But not all product we support is published here and not all product published here is always available. Please do not hesitate to contact us If you do not find what you are looking for here or if you have any concerns about the current availability of any particular product or list of products, prior to placing an order. It will be our honor to be of service to you where we are able.

We work equally well with single Owner / Operators to full Fleet Maintenance and all those in between and sincerely attempt to return true value to all. We welcome opportunities for volume orders, support OEMs and Resale clients, and appreciate sincere price match requests, and the like. Do not hesitate to contact us during business hours using the Chat Application below or you will find our full Contact Details on our Contact page. However you decide to do it, we look forward to hearing from you and will respond to all as soon as possible, We want your business and welcome an opportunity to earn it.

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All manufacturer names, symbols, and descriptions, used in our images & text are used solely for identification purposes only. It is neither inferred nor implied that any item sold by Woodline Parts is a product authorized by or in any way connected with any original manufacturer...

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