ManuMark
All products

Calliper Pistons repair kits

Replacement calliper pistons and associated dimensions.

19 product lines · ManuMark 2026 catalogue

Fitting notice: Air brake components must be fitted by a qualified technician and matched to your vehicle’s exact part number.

19 products

Calliper Main Piston

MM1975/1
MM1975/1 Calliper Main Piston
Calliper Pistons · Catalogue page 25
Product details

Diameter = Ø 76.29 Length = 23.7

Calliper Inner Piston

MM2051
MM2051 Calliper Inner Piston
Calliper Pistons · Catalogue page 25
Product details

Diameter = Ø 38 Length = 38

Calliper Main Piston

MM2058
MM2058 Calliper Main Piston
Calliper Pistons · Catalogue page 25
Product details

Diameter = Ø 48.1 Length = 20.3

Calliper Inner Piston

MM2061-4
MM2061-4 Calliper Inner Piston
Calliper Pistons · Catalogue page 25
Product details

Diameter = Ø 57.9 Length = 42

BELL Calliper Piston

MM2781
MM2781 BELL Calliper Piston
Calliper Pistons · Catalogue page 26
Product details

Diameter = Ø 85 Length = 45.5 KNOTT Calliper BELL B35D B40D For KIT see MM33095 & MM33095 Lean

FURUKAWA Piston

MM3045
MM3045 FURUKAWA Piston
Calliper Pistons · Catalogue page 26
Product details

Diameter = Ø 74.8 Length = 39.2 Goes with MM66011/B

Calliper Main Piston

MM33089/1
MM33089/1 Calliper Main Piston
Calliper Pistons · Catalogue page 26
Product details

Diameter = Ø 76.1 Length = 48.7 BELL B30 BELL B25 (218439) For KIT see MM33089 or MM33089/B ROCKWELL 4 Pistons per Kit

Calliper Main Piston

MM33095/1
MM33095/1 Calliper Main Piston
Calliper Pistons · Catalogue page 26
Product details

Diameter = Ø 84.9 Length = 47.5 BELL CALLIPER For KIT see MM33095 or MM33095/B

MERITOR Piston Assembly

MM66006
MM66006 MERITOR Piston Assembly
Calliper Pistons · Catalogue page 27
Product details

Diameter = Ø 66.6 Length = 55.6

LIUGONG Calliper Piston

MM66010/1
MM66010/1 LIUGONG Calliper Piston
Calliper Pistons · Catalogue page 27
Product details

Diameter = Ø 70 Length = 40

Calliper Piston

MM3621
MM3621 Calliper Piston
Calliper Pistons · Catalogue page 27
Product details

Diameter = Ø 66.7 Length = 54.9 See MM3621/1 for the Seal Kit

Calliper Piston

MM3658
MM3658 Calliper Piston
Calliper Pistons · Catalogue page 27
Product details

Diameter = Ø 66.9 Length = 46

Calliper Piston

MM3830
MM3830 Calliper Piston
Calliper Pistons · Catalogue page 28
Product details

Diameter = Ø 92 Length = 61.1

Calliper Piston

MM4025
MM4025 Calliper Piston
Calliper Pistons · Catalogue page 28
Product details

Diameter = Ø 79.3 Length = 49.3 For KIT see MM66009 or MM66009B

Calliper Piston

MM4095
MM4095 Calliper Piston
Calliper Pistons · Catalogue page 28
Product details

Diameter = Ø 114.2 Length = 61.3

Calliper Piston

MM4159
MM4159 Calliper Piston
Calliper Pistons · Catalogue page 28
Product details

Diameter = Ø 79.93 Length = 49.3

Calliper Piston

MM4167
MM4167 Calliper Piston
Calliper Pistons · Catalogue page 29
Product details

Diameter = 72Ø x 60.3 x 40.4 78/74548E

Calliper Piston – Liugong ZL50CX

MM4168
MM4168 Calliper Piston – Liugong ZL50CX
Calliper Pistons · Catalogue page 29
Product details

Diameter = 75 Ø x 47.5 Liugong ZL50CX Wheel Loader

Calliper SEAL KIT (Brake Fluid)

MM4168/1
MM4168/1 Calliper SEAL KIT (Brake Fluid)
Calliper Pistons · Catalogue page 29
Product details

Calliper SEAL KIT (Brake Fluid) Luigong ZL50CX Wheel Loader ** ONE KIT DOES FOUR PISTONS **

About brake calliper pistons

The calliper piston transfers force to the brake pad. A scored or corroded piston damages seals and causes leaks or sticking.

When to replace

Pitting, corrosion or scoring on the piston surface, or seals that keep failing after a rebuild, mean the piston itself should be replaced.

What's in the kit

ManuMark calliper pistons are precision machined and ground to size, ready to fit with a matching calliper seal kit. All 19 calliper pistons lines are manufactured by Pitchline Engineering in an ISO 9001 environment in Pinetown and supplied from our Pinetown branch across South Africa.

Calliper Pistons questions

When should a calliper piston be replaced rather than reused?

Whenever the sealing surface is pitted, scored or corroded, because a new seal will not hold against a damaged piston.

Are ManuMark pistons machined locally?

Yes. They are CNC turned and ground by Pitchline Engineering in Pinetown.

How do I identify the right piston?

Use the ManuMark part number, or the diameter and calliper reference, listed on this page.