The 7135-110 Injection Pump Repair Kit is an aftermarket gasket and seal kit for compatible CAV DPA rotary distributor injection pumps. Commonly listed identification numbers include 7135-110, 7135110, and CAV7135-110, while aftermarket catalogs may cross-reference numbers such as 9059041A, 9059-041A, 9059156, 9059-156, and 1987240106.
People commonly associate the kit with 3-, 4-, and 6-cylinder CAV DPA pumps, especially configurations that use a 3-bolt drive. Some keyed-drive pump configurations may require two additional 5393-252R seals, depending on the pump design.
The 7135-110 Repair Kit primarily replaces aged or damaged gaskets, O-rings, shaft seals, sealing rings, and related sealing components during pump service. It is not a complete internal rebuild kit and does not automatically replace worn hydraulic heads, rotors, pumping elements, governors, or advance components.
Before ordering, confirm the complete pump identification number, cylinder configuration, and drive arrangement rather than relying only on the tractor or equipment model.
1. What Is the 7135-110 Repair Kit?
The 7135-110 Repair Kit is a service kit designed for compatible CAV DPA distributor-type diesel injection pumps.
CAV DPA pumps were widely used on older agricultural, industrial, and utility diesel engines. The DPA design uses a rotary pumping and distribution system to deliver fuel to the engine cylinders in sequence.
After years of operation, the original sealing materials can harden, shrink, crack, or lose their ability to maintain a reliable seal. This can lead to diesel leakage around the pump or allow air to enter parts of the fuel system.
A 7135-110 Repair Kit provides replacement sealing components for this type of service. It is therefore primarily a seal and gasket repair solution, rather than a complete pump overhaul package.
Common 7135-110 Identification Numbers
Commonly listed identifiers include:
- 7135-110
- 7135110
- CAV7135-110
Some aftermarket catalogs also list cross-reference numbers such as:
- 9059041A
- 9059-041A
- 9059156
- 9059-156
- 1987240106
These numbers should be treated as aftermarket cross-reference identifiers. Buyers should not assume that every listed number represents a separate original manufacturer part or that all versions have identical contents.
2. What Does the 7135-110 Repair Kit Include?
The exact contents of a 7135-110 Repair Kit can vary between aftermarket suppliers and kit versions, so the supplier’s current parts list should be checked before ordering.
The kit is generally described as a gasket and seal set and may include:
- Pump body and cover gaskets
- O-rings
- Shaft seals
- Sealing rings
- Copper washers
- Other small sealing components used during DPA pump service
The purpose of these components is to renew the pump’s sealing points during maintenance or repair.
What the Kit Does Not Normally Replace
A seal kit should not be confused with a complete DPA pump rebuild kit.
Depending on pump condition, a full rebuild may require inspection or replacement of:
- Hydraulic head and rotor
- Pumping components
- Governor components
- Advance mechanism
- Drive-related components
- Other precision internal parts
Therefore, replacing the seals can address a sealing problem, but it cannot correct significant internal wear.
3. Which CAV DPA Pumps Use the 7135-110 Repair Kit?
Application information commonly associates the 7135-110 Repair Kit with 3-, 4-, and 6-cylinder CAV DPA rotary injection pumps.
A commonly specified configuration uses a 3-bolt drive, but the drive arrangement should always be checked against the actual pump.
The most reliable compatibility information comes from the pump itself rather than the equipment model. Production changes, engine variations, replacement pumps, and previous repairs can result in different pump configurations being installed on otherwise identical equipment.
Before ordering, check:
- Complete pump identification number
- CAV/Lucas/Delphi DPA configuration
- Number of cylinders
- Drive arrangement
- Shaft type
- Existing sealing arrangement
Does a Keyed Shaft Change the Kit Requirement?
Yes. Some DPA pumps with a keyed drive shaft may require two additional 5393-252R seals.
This requirement depends on the specific pump configuration. Therefore, a buyer should not automatically assume that every DPA pump using the 7135-110 number requires exactly the same sealing components.
4. What Equipment Uses the 7135-110 Repair Kit?
The 7135-110 Repair Kit has a broad aftermarket application range across older agricultural and industrial diesel equipment.
Commonly referenced equipment manufacturers include Ford, Massey Ferguson, John Deere, Case, David Brown, International Harvester, Long, Allis-Chalmers, and IMT.
Ford applications commonly listed in aftermarket catalogs include various tractors from the 2000, 3000, 4000, 5000, 6000/6600, 7000, 7600, 7700, 7810, and 7910 families, along with selected industrial and loader applications.
Massey Ferguson applications can include tractors from families such as the 35, 50, 65, 135, 150, 165, 175, 180, 230, 240, 245, 265, 275, 290, 390, and 399, depending on the installed injection pump.
John Deere application information includes various older 20-, 30-, and 40-series tractors and related industrial equipment. Other aftermarket catalogs also associate the kit with selected Case, David Brown, International Harvester, Long, and IMT equipment.
These applications should be treated as reference examples rather than automatic compatibility confirmation. The same equipment model can sometimes use different injection pump configurations.
For that reason, always compare the actual pump number and drive arrangement before purchasing a 7135-110 kit.
5. What Are the Signs That a DPA Pump May Need New Seals?
Aged or damaged pump seals can produce several visible fuel-system symptoms.
Common signs include:
- Diesel wetness around the injection pump
- Fuel leakage near the pump shaft
- Seepage around covers or flanges
- Fuel odor around the pump
- Repeated fuel-system bleeding
- Difficulty maintaining fuel-system prime
A sealing problem can also allow air to enter the fuel system in some circumstances. This may contribute to difficult starting or inconsistent fuel delivery.
However, these symptoms do not automatically prove that the seals have failed.
Hard starting, low engine power, unstable idle, excessive smoke, or poor throttle response can also result from injector problems, restricted fuel supply, incorrect injection timing, internal pump wear, or other engine faults.
A proper diagnosis should therefore come before replacing the 7135-110 Repair Kit.
6. When Should You Use a 7135-110 Repair Kit?
A 7135-110 Repair Kit is most appropriate when the pump remains mechanically serviceable but its sealing components have deteriorated.
Typical repair situations include an older DPA pump with external fuel leakage, replacement of old seals during scheduled pump service, or a pump being disassembled for maintenance where the original sealing components should not be reused.
The condition of the sealing surfaces is also important.
A new seal can provide a reliable repair when the shaft, housing, and mating surfaces remain in suitable condition. However, a worn shaft or damaged sealing surface can cause leakage even after installing a new seal.
A more extensive rebuild may be necessary if inspection identifies significant wear in the:
- Hydraulic head and rotor
- Pumping mechanism
- Governor
- Advance mechanism
- Other internal precision components
In other words, the 7135-110 kit should be selected according to the actual repair requirement, rather than assuming that every DPA pump leak requires only a new seal kit.
7. What Should You Inspect During a DPA Pump Repair?
Installing new seals is only one part of a proper DPA pump repair.
Before assembly, inspect the areas where the new sealing components will operate. Shaft sealing surfaces deserve particular attention because scoring, wear, or corrosion can cause a new seal to leak prematurely.
The pump housing, covers, and mating surfaces should also be checked for:
- Corrosion
- Scoring
- Distortion
- Damage around sealing areas
- Contamination or debris
If the pump requires more than basic seal replacement, internal components should be inspected according to the appropriate service procedure.
Depending on the pump condition, this may include the hydraulic head and rotor, pumping components, governor, advance mechanism, and other wear-sensitive components.
Clean assembly is equally important. Dirt or foreign material inside a distributor pump can affect close-tolerance components and fuel delivery.
For a complete pump rebuild, professional injection-pump service and test-bench calibration may be required after assembly.
8. How Do You Choose the Correct 7135-110 Repair Kit?
The safest way to select a 7135-110 Repair Kit is to identify the injection pump rather than relying only on the tractor model.
When requesting a kit, provide as much of the following information as possible:
- Repair kit number: 7135-110 / 7135110
- Pump type: CAV DPA
- Complete pump identification number
- Cylinder configuration: 3, 4, or 6 cylinder
- Drive type: 3-bolt or keyed shaft
- Equipment or tractor model
- Engine model
- Photo of the pump identification plate, if available
The pump number is particularly useful because the same tractor family may have different engine or injection-pump configurations.
If an application catalog lists your equipment model but the actual pump identification does not match, request compatibility confirmation before ordering.
For workshops, distributors, and wholesale buyers, providing the pump number and application details at the inquiry stage can also reduce incorrect kit selection and unnecessary returns.
9. How Can You Maintain a CAV DPA Pump After Repair?
Proper fuel-system maintenance can help protect a repaired DPA injection pump.
Use clean diesel fuel and maintain the fuel filtration system according to the equipment manufacturer’s maintenance requirements. Water and contamination can accelerate wear inside mechanical injection systems.
After installing new seals, inspect the pump for fuel leakage during operation. Also monitor:
- Engine starting
- Idle stability
- Throttle response
- Fuel-system priming
- Visible fuel leakage
If leakage returns shortly after installing new seals, do not assume that the replacement kit itself is defective. Inspect the shaft sealing surface, housing, and other related components for wear or damage.
A worn shaft or damaged sealing surface may prevent a new seal from maintaining a reliable fuel-tight connection.
For pumps that require internal rebuilding, use the applicable service procedure and appropriate testing equipment for final calibration.
10. Other Repair Kit Guides and More Reading
The 7135-110 Repair Kit supports gasket and seal replacement for compatible CAV DPA injection pump applications. For related diesel injection pump repair solutions, explore the following guides to compare repair kit types, components, compatibility, and servicing applications.
- Gasket Repair Kit 7135-277H for Delphi DP210 DP310
- Injector Pump Repair Kit 7135-70 for Ford Tractor
- Fuel Injection Pump Gasket Seal Repair Kit 190440-0390 7135-409 800671
- 1467010467 Seal O-Rings VE Fuel Pump Overhaul Repair Kit
Read more:
- 2417010022 Repair Kit: Fuel Injection Pump PE(S)8P Gasket & Seal Rebuild Guide
- P7100(A) Repair Kit: Complete Injection Pump Repair and Rebuild Guide
- Injection Pump Repair Kit 1467010059
11. Frequently Asked Questions About the 7135-110 Repair Kit
Q1: Is 7135-110 a CAV DPA seal kit?
Yes. The 7135-110 Repair Kit is generally identified as an aftermarket gasket and seal kit for compatible CAV DPA rotary distributor injection pumps. Exact contents can vary by supplier and kit version.
Q2: Is the 7135-110 Repair Kit the same as a complete DPA rebuild kit?
No. The 7135-110 kit primarily addresses gaskets, seals, O-rings, and related sealing components. A complete DPA overhaul may require additional internal parts after inspection.
Q3: Can I match a 7135-110 kit only by tractor model?
It is not recommended. Tractor model information can help identify possible applications, but the complete injection pump number and drive configuration provide a more reliable compatibility check.
Q4: Why might a DPA pump require 5393-252R seals in addition to 7135-110?
Some DPA pumps with a keyed drive shaft may require two additional 5393-252R seals. The requirement depends on the actual pump configuration.
Q5: Can a 7135-110 kit fix a leaking injection pump?
It can address leakage caused by deteriorated or damaged sealing components when the related sealing surfaces remain serviceable. It will not correct leakage caused by a severely worn shaft, damaged housing, or other mechanical problems.
Q6: Can the 7135-110 Repair Kit improve engine performance?
Not directly. Its primary function is to restore pump sealing. If poor engine performance results from internal pump wear, injector problems, fuel restrictions, incorrect timing, or another fault, additional diagnosis may be necessary.
Q7: What information should I provide when ordering a 7135-110 Repair Kit?
Provide the complete injection pump number, equipment or tractor model, engine information, cylinder count, and drive configuration. A clear photograph of the pump identification plate is also useful for compatibility verification.
Conclusion
The 7135-110 Repair Kit is primarily a gasket and seal solution for compatible CAV DPA rotary distributor injection pumps. It is commonly associated with 3-, 4-, and 6-cylinder DPA configurations, particularly pumps using a 3-bolt drive, while certain keyed-shaft configurations may require additional seals.
Its aftermarket application range covers many older agricultural and industrial machines associated with Ford, Massey Ferguson, John Deere, Case, David Brown, International Harvester, Long, and other equipment manufacturers. However, equipment model information should only serve as an initial reference. The actual pump identification and drive configuration remain the better basis for compatibility confirmation.
Most importantly, the 7135-110 Repair Kit should be considered a gasket and seal service kit, not a complete DPA pump overhaul kit. If the hydraulic head, rotor, pumping mechanism, governor, advance system, or other precision components show significant wear, additional repair parts and professional pump servicing may be necessary.
Pioneer Diesel Parts supplies new aftermarket diesel injection pump repair kits for workshops, distributors, agricultural equipment parts buyers, and diesel fuel-system professionals. Contact us with your complete pump number and application details for compatibility confirmation and wholesale pricing.
Disclaimer
All brand names, trademarks, OEM part numbers, engine models, equipment models, and vehicle names mentioned in this article are used for reference and compatibility identification purposes only. Unless expressly stated otherwise, Pioneer Diesel Parts supplies high-quality aftermarket replacement parts featured on this website. These products are not genuine OEM products, and the respective original equipment manufacturers do not manufacture, affiliate with, endorse, or sponsor them. All trademarks and registered trademarks are the property of their respective owners.