Type 25 Exhaust Fitting Kit - 1985-92 - 1900cc Waterboxer (SP Engines With Sliding Clamp On J-Pipe)

This replacement exhaust gasket is used to seal a three-bolt triangular exhaust flange, providing a gas-tight joint between exhaust components. With a 55mm internal diameter, it is commonly found on a wide range of Volkswagen and Porsche exhaust systems across multiple generations and engine sizes.

A sound gasket at this joint is essential to prevent exhaust leaks, reduce noise, and maintain correct exhaust flow and back pressure. Over time, heat cycling and vibration can cause exhaust gaskets to fail, leading to blowing joints, rattles, and potential MOT failures. This gasket is designed as a direct replacement, manufactured to the correct shape and dimensions for reliable sealing.

Specifications

• Type: 3-bolt triangular exhaust gasket

• Internal Diameter: 55mm

• Quantity: Sold individually

• Usage: Exhaust flange sealing

Fitting Notes

• Fits 3-bolt triangular exhaust flanges

• Always recommended when separating exhaust joints

• Ensure flange faces are clean and flat before installation

• Check bolt condition and replace if corroded

Applications

This gasket is used across a wide range of VW and Porsche models, including:

• VW Transporter

  • T2 Bay – 1.7–2.0 Aircooled (1971–1979)

  • T3 / Type 25 – 2.1 Petrol (1985–1992)

  • T4 – 2.0 & 2.5 Petrol (1990–2003)

• VW Golf

  • Golf Mk1 & Mk4 – multiple petrol & diesel variants

• VW Bora

  • 1.8 & 2.3 Petrol

• VW Passat

  • B2 & B3 petrol and diesel models

• VW Caddy Mk1

• VW Scirocco Mk1 & Mk2

• VW Santana

• Porsche 914 – 1.7–2.0

(Please match gasket size and flange type before ordering due to the wide range of applications.)

Replacement sealing washer used between the exhaust manifold and downpipe on a wide range of classic and watercooled Volkswagen models along with Porsche 924 applications. This sealing ring creates a gas-tight seal between the exhaust components, helping to prevent exhaust leaks, blowing joints, unwanted noise, and loss of engine performance.

Manufactured from heat-resistant compressed material, this gasket is designed to withstand the extreme temperatures and vibration found within the exhaust system. Over time exhaust sealing washers become brittle, crushed, or damaged during removal, which can lead to exhaust leaks, rattles, reduced engine efficiency, and MOT emissions failures.

This sealing washer is commonly used on Golf Mk1, Mk2, Mk3, Caddy, Scirocco, Passat, Polo, T3/T25 Transporter and LT models, as well as Porsche 924 vehicles. Suitable for front, centre, or rear exhaust connections depending on application.

When replacing exhaust gaskets it is recommended to inspect the condition of the mounting hardware, manifold studs, springs, clamps, catalytic converter joints, and downpipe flanges. Exhaust assembly paste may also assist sealing on older systems where surfaces are slightly worn or corroded.

Specifications:
• Inner Diameter: 46.5mm
• Outer Diameter: 60mm
• Thickness/Height: 13.5-14mm
• Position: Front / Centre / Rear Exhaust Connection
• Sold individually

OEM Part Numbers:
• 431253137A
• 443253137C
• 477253137
• 855253137A

Applications:

Watercooled VW:
• VW Caddy Mk1 1.8 Petrol 1985-1992
• VW Caddy Mk2 1.4 & 1.6 Petrol 1995-2004
• VW Golf Mk1 Cabriolet 1.6 & 1.8 Petrol 1983-1993
• VW Golf Mk3 1.4 & 1.6 Petrol 1991-1999
• VW Scirocco Mk2 1.6 & 1.8 Petrol 1985-1992
• VW Passat B2 1.3-2.2 Petrol & 1.6 Diesel models 1980-1988
• VW Polo 6N / Classic / Estate 1.4 & 1.6 Petrol 1994-2001
• VW Vento 1.4 & 1.6 Petrol 1991-1998
• VW Santana 1.6-2.0 Petrol & Diesel 1981-1984

VW Transporter & Commercial:
• VW T3/T25 Transporter 1.9 & 2.1 Petrol models 1982-1992
• VW LT Mk1 / LT 28-35 / LT 40-55 2.4 Diesel/Petrol & 2.7 Diesel models 1978-1996

Porsche:
• Porsche 924 2.0 1975-1989

This replacement exhaust tailpipe gasket is fitted between the tailpipe and the exhaust silencer, providing a gas-tight seal at the rear of the exhaust system. A sound gasket at this joint is essential to prevent exhaust leaks, reduce noise, and ensure correct exhaust flow and back pressure.

Over time, exhaust gaskets are exposed to extreme heat, vibration, and moisture, which can cause them to harden, crack, or fail. Replacing the tailpipe gasket whenever the tailpipe or silencer is removed helps maintain proper sealing and avoids leaks that can lead to noise, fumes, or MOT failures.

This gasket is manufactured to the correct shape and material specification to suit a wide range of classic Volkswagen and Porsche exhaust systems. It is a direct replacement, designed to fit neatly between the tailpipe and silencer without modification.

Fitting Notes

• Fits between the tailpipe and exhaust silencer

• 1 gasket required per exhaust system

• Always recommended when replacing or refitting a tailpipe

• Ensure mating surfaces are clean before installation

Applications

• VW Transporter T2 – 1.7–2.0 Aircooled

  • Model Years: August 1971 – July 1979

• VW Transporter T3 – 1.6 & 1.7 Diesel

  • Model Years: January 1981 – July 1987

• VW Transporter T3 / Type 25 – 1.9 & 2.1 Waterboxer

  • Model Years: May 1979 – July 1992

• Porsche 914 – 1.7–2.0

  • Model Years: January 1969 – February 1976

• VW Type 4 – 1.7 & 1.8

  • Model Years: July 1973 – March 1975