Skip to product information
CAV DPA Pump Repair Seal Kit 7135-110 for Long Tractors

CAV DPA Pump Repair Seal Kit 7135-110 for Long Tractors

SKU: NLT1A00270
$22.99 In Stock
$22.99
Sale price  $22.99 Regular price 
Ships for free in 2–4 business days.
This new aftermarket injection-pump seal kit replaces CAV / Lucas 7135-110 for compatible Long 350 through 2610 tractors equipped with the matching DPA rotary pump.
Estimated delivery between
Shop at Northline Parts Best Customer Service Best Online Parts

Let Northline Parts Do the Heavy Lifting for You!

Not sure which part you need? Our team can help you find the right replacement.

Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT

Live Chat: Available 24/7

I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks

Edward H. — Verified customer

Compatible Models

We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.

Compatible equipment / model
  • Long 350, 445 and 460 tractors
  • Long 510, 550, 560 and 610 tractors
  • Long 2360 and 2460 tractors
  • Long 2510 and 2610 tractors
  • CAV / Lucas DPA three-, four-, and six-cylinder pumps specifying 7135-110

Product Overview

An older Long tractor may begin wetting the pump with diesel after years of heat cycles or a long period of storage. External leakage can often be resealed, but unstable speed, poor starting, or low power may require internal hard parts and calibration beyond this kit.

The multi-piece assortment supplies common soft seals, O-rings, gaskets, and washers used during DPA pump service. It is intended for the exact pump family on the nameplate, not every injection pump installed on the listed tractors.

Confirm 7135-110, the full DPA pump build number, three-bolt pump style where applicable, engine, tractor model, and every seal needed for the planned repair. Previous swaps can change fitment.

Key Features & Performance

  • Assortment of DPA pump soft seals and gaskets
  • Supports several common external resealing jobs
  • Suitable for matching three-, four-, and six-cylinder rotary pump builds
  • Different wording and fitment emphasis from a generic engine gasket kit

Replaces Part Numbers

  • 7135-110
  • 7135110
  • CAV7135-110

Common Uses

  • Repairing an external diesel leak from a pump cover
  • Renewing old seals during planned pump work
  • Servicing a pump after storage-related seal shrinkage

Technical Specifications

  • Product Type: Rotary injection-pump seal and gasket kit
  • Pump Family: CAV / Lucas DPA
  • Tractor Brand: Long
  • Condition: New aftermarket service kit

Installation & Fitment

  • Keep the work area and pump surgically clean
  • Document timing, linkage, and screw positions
  • Do not disturb calibrated settings without pump-bench capability
  • Replace only seals appropriate to the exact pump build
  • Bleed and test for leakage, stable idle, and safe shutdown

Compatibility Notice

Northline Parts does its best to list all known compatible models, but the correct part may fit an application that is not shown above. Model year, production date, serial number, engine or equipment specification, installed options, and previous repairs can change fitment. Match the original part, reference number, dimensions, connectors, mounting points, and product photos before purchase.

Frequently Asked Questions

Q: Is this a complete injection-pump rebuild kit? A: No. It is primarily a soft seal and gasket assortment, not bearings, pumping elements, valves, or calibration.

Q: Can I order by Long tractor model only? A: No. Read the pump nameplate because pumps may have been changed over decades of service.

Q: Will it stop every fuel leak? A: Only when the leak comes from a seal included for the correct pump; cracked housings and worn shafts need other repairs.

Q: Is this an original-equipment part? A: No. This is a new aftermarket product. Brand names and part numbers are used only to identify compatible applications.

Part Summary

keywords: Long 7135-110 pump repair kit, CAV DPA tractor pump seals, Long 550 diesel leak repair, Long 2510 injection pump gasket, 7135110 rotary pump service

Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, specifications, and application before purchase.

Customers also purchased