SKU: 67148286596

2123995 Genuine Paccar Back Pressure Valve

Sale price$359.55 Regular price$399.50
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Ships within 48 hours · Estimated delivery Jul 29 - Aug 3

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Description

2123995 Genuine Paccar Back Pressure ValvePart details DESCRIPTION Back Pressure Valve CONDITION Used BRAND Paccar PART NUMBER 2123995 OTHER OEM PART NUMBERS THAT WILL WORK 2123995PE, 2187602, 2187602PE, 2256375, 2256375PE, 2339635, 2339635PE, 2426254PE, 2426254, 2187602. 2339635PE Function of this part This component is part of the heavy duty truck chassis or engine system and is designed for the loads and duty cycles found in commercial service. It is built to work with OEM mounting points

Part details

DESCRIPTION Back Pressure Valve 
CONDITION Used
BRAND Paccar
PART NUMBER 2123995
OTHER OEM PART NUMBERS THAT WILL WORK 2123995PE, 2187602, 2187602PE, 2256375, 2256375PE, 2339635, 2339635PE, 2426254PE, 2426254, 2187602. 2339635PE

Function of this part

This component is part of the heavy-duty truck chassis or engine system and is designed for the loads and duty cycles found in commercial service. It is built to work with OEM mounting points and connections for the specified application.

Why this part matters

Choosing a correct OEM-style part helps avoid fitment issues and keeps the truck operating as the manufacturer intended. A good used part can restore function quickly while keeping repair costs under control.

About the brand

PACCAR components support both Kenworth and Peterbilt trucks with OEM-grade fit and performance.

Fitment & usage

Used OEM parts are a smart choice for controlling repair costs while still using original-equipment components. Always match the OEM part number(s) listed to your existing part, and consult your service manual, dealer, or technician if you are unsure about fitment.

Note: Because this is a used component, normal signs of wear such as scratches, discoloration, or light surface corrosion may be present. Refer to the product photos and information on Second Truck Parts for the best representation of the part you will receive.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 67148286596

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4.4 ★★★★★
Based on 12 reviews
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Ree
Lexington, US
★★★★★ 5
Perfect lightweight denim for summer in Florida!
Size: Large, Color: Union Blue, Size: Large, Color: Union Blue
LOVE EM. Insanely comfortable and lightweight quality denim with a kiss of stretch (perfect for summer). I pair them with tees, cropped tops, tanks or button up shirts. They’re adorable with sandals, sneaks, flats or flops. I went through about 5 pairs of jeans from different stores looking for the perfect combo of lightweight, comfy and stylish; these fit the bill. The distressed accents (a few rips and paint flecks) add interest without being over the top. The attached belt is such an adorable accent. Love love love these and will likely buy a second pair. True to size.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026
K
Verified Purchase
Kristen
Lexington, US
★★★★★ 5
Super comfy, roomy, great quality!
Size: Medium, Color: Calypso Blue
These are so cute! They fit nicely, actually run a bit big but that’s probably intentional. I’m short, just a little over 5 feet tall and they are the perfect length for me. I got a medium, i normally wear some mediums and some larges. They are lightweight denim and great quality!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 6, 2026
R
Verified Purchase
Rita Giebink
Belleville, US
★★★★★ 5
Sturdy fabric, well made.
Size: X-Large, Color: Royal Blue
I LOVE these pants!!! Who buys pants online??? I NEVER do, but I took the chance band I absolutely adore them!! I’m 5”10’ 200lbs and they are so super comfy and look fabulous on me too. (If I do say so myself) Wore them to the baseball game and got three compliments. Might order another pair? Seriously, they are well constructed. Good solid material with just enough stretch. The pockets are actual Pockets. I seriously love them.
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Reviewed in the United States on May 23, 2026
I
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itsphoebemarie
Bozeman, US
★★★★★ 4
Great fit, good quality, horrible smell
Size: X-Large, Color: Calypso Blue, Size: X-Large, Color: Calypso Blue
Surprisingly decent for the low price. Love the details. Fit is good, but I sized up based on the measurements (I wear a 14 but bout the XL/16-18) and I like the looser fit if them. Would honestly rate 5 stars, but there was a HORRIFIC little fragrance pie thing stuck in the bag... I'm sure, based on how many people I walk past in the world stink of hyper-scented laundry detergent, that this is not a problem for some folks, but many people also have fragrance sensitivities, and this can be not just problematic for some, but dangerous. I had to wash these jeans 4 times before the odor went away enough for me to wear them. So that was disappointing, but otherwise, I'm a fan.
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Reviewed in the United States on June 7, 2026
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Verified Purchase
shawna Stevens
New York, US
★★★★★ 5
Perfect
Size: Large, Color: Calypso Blue
Love these! Perfect fit. Ordered normal size! They are a bit loose but look great that way! Very comfortable!They are perfect length at my ankles and I'm 5'3"
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Reviewed in the United States on May 3, 2026

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