Ski‑Doo Exhaust Manifold / Y‑Pipe Donut Gasket – Replaces 514053487 – Fits MXZ, Renegade, Freeride, GSX, GTX, Grand Touring

OVERVIEW

This exhaust manifold donut gasket restores critical seal integrity between the header and Y-pipe on 2-stroke Ski-Doo snowmobiles, replacing worn or crushed OEM seals to prevent exhaust blow-by. Precision-manufactured from a high-temperature resistant composite, it matches factory tolerances for a direct bolt-on replacement designed specifically for MXZ, Renegade, Freeride, GSX, GTX, and Grand Touring platforms.

ENGINEERING & PERFORMANCE

Positioned at the junction of the exhaust manifold and head pipe, this gasket minimizes exhaust leakage that degrades scavenging efficiency and cylinder pressure. The composite composition withstands continuous exposure to extreme heat cycling and chassis vibration without compression set or degradation. Dimensional accuracy preserves consistent backpressure delivery, supporting steady throttle response and optimal combustion during cold-weather operation.

KEY FEATURES

• Direct replacement for OEM part number 514‑0534‑87
• Intercepts and seals exhaust flow between the manifold and Y-pipe
• Precision engineered to 66 mm inner diameter, 82.4 mm outer diameter, and 12 mm height
• High-temperature and vibration-resistant composite construction
• Restores proper exhaust sealing and system backpressure
• Designed specifically for Ski-Doo 2-stroke powerplants
• Manufactured to strict dimensional standards for reliable leak prevention
• Made in Taiwan for consistent build quality

TECHNICAL SPECIFICATIONS

• Brand: Ski-Doo & Aftermarket Replacement
• Part Name: Exhaust Manifold / Y-Pipe Donut Gasket
• Exhaust Type: Gasket / Seal Component
• Material: High-Temperature Resistant Composite
• Supported Years: 2003–2018
• Compatible Trims: Expedition, Freeride, Grand Touring, GSX, GTX, Legend, Mach Z, MX Z, Renegade (E‑TEC, ACE, Carb, and PowerTEK variants)

FITMENT

• Ski-Doo Expedition 600 (2010)
• Ski-Doo Expedition LE / SE E-TEC 600 HO (2011–2017)
• Ski-Doo Freeride E-TEC 800R (2012–2014, 2017)
• Ski-Doo Freeride E-TEC 850 (2018)
• Ski-Doo Freeride S-38 E-TEC 850 (2018)
• Ski-Doo Grand Touring 600 Sport (2010–2011)
• Ski-Doo Grand Touring 700 SE / Sport (2003)
• Ski-Doo Grand Touring 800 SE (2003)
• Ski-Doo Grand Touring LE E-TEC 600 HO (2011–2012)
• Ski-Doo Grand Touring Sport 600 ACE (2012–2014, 2017)
• Ski-Doo Grand Touring Sport 600 Carb (2012–2014)
• Ski-Doo GSX 500SS Sport (2004–2009)
• Ski-Doo GSX 600 Sport (2005–2007, 2010)
• Ski-Doo GSX 800 / 800 Limited (2004–2005, 2008)
• Ski-Doo GSX LE / SE E-TEC 600 HO (2012–2014)
• Ski-Doo GSX SE E-TEC 800R (2012–2014)
• Ski-Doo GTX 500SS Sport (2005–2008)
• Ski-Doo GTX 600 / 600 Sport (2005–2008)
• Ski-Doo GTX 800 (2005)
• Ski-Doo Legend 500 Sport (2004)
• Ski-Doo Legend 600 SE (2004)
• Ski-Doo Legend 700 SE (2003–2004)
• Ski-Doo Legend 800 SE SDI (2003–2004)
• Ski-Doo Mach Z 1000 (2005)
• Ski-Doo Mach Z X (2006–2007)
• Ski-Doo MX Z 440 X (2004–2007)
• Ski-Doo MX Z 500 Trail (2004–2005)
• Ski-Doo MX Z 600 Adrenaline / X / X-RS (2004–2011)
• Ski-Doo MX Z 600 Blizzard (2007)
• Ski-Doo MX Z 600 Renegade (2004–2005, 2009)
• Ski-Doo MX Z 600 Sport (2010–2011)
• Ski-Doo MX Z 600 TNT (2009–2011)
• Ski-Doo MX Z 600RS (2008)
• Ski-Doo MX Z 800 Adrenaline / Blizzard (2004–2007)
• Ski-Doo MX Z 800 Renegade (2004–2009)
• Ski-Doo MX Z 800R Renegade (2008)
• Ski-Doo MX Z 800R Adrenaline (2008–2010)
• Ski-Doo MX Z Blizzard E-TEC 600 HO (2017)
• Ski-Doo MX Z Blizzard E-TEC 850 (2018)
• Ski-Doo MX Z Sport 600 ACE (2011–2014)
• Ski-Doo MX Z Sport 600 Carb (2012–2014, 2017)
• Ski-Doo MX Z TNT 800R PowerTEK (2011)
• Ski-Doo MX Z TNT E-TEC 600 HO (2011, 2017)
• Ski-Doo MX Z TNT E-TEC 800R (2011–2012)
• Ski-Doo MX Z TNT E-TEC 850 (2018)
• Ski-Doo MX Z X E-TEC 600 HO (2011–2014, 2017)
• Ski-Doo MX Z X E-TEC 800R (2011)
• Ski-Doo MX Z X E-TEC 850 (2018)
• Ski-Doo MX Z X-RS 800R (2010)
• Ski-Doo MX Z X-RS E-TEC 800R (2011–2012)
• Ski-Doo MX Z X-RS E-TEC 850 (2018)
• Ski-Doo MX Z X-RS Iron Dog E-TEC 600 HO (2017)
• Ski-Doo Renegade Adrenaline 800R PowerTEK (2011)
• Ski-Doo Renegade Adrenaline E-TEC 600 HO (2017)
• Ski-Doo Renegade Adrenaline E-TEC 850 (2018)
• Ski-Doo Renegade Backcountry 800R PowerTEK (2011)
• Ski-Doo Renegade Backcountry E-TEC 600 HO (2017)
• Ski-Doo Renegade Backcountry E-TEC 800R (2017)
• Ski-Doo Renegade Backcountry E-TEC 850 (2018)

WHY RIDERS CHOOSE THIS

Riders install this gasket when exhaust leaks compromise scavenging efficiency or when factory seals fail under repeated thermal stress. The precision-matched dimensions eliminate gap-related airflow loss, allowing the two-stroke engine to maintain consistent cylinder pressure and throttle response throughout demanding winter runs. Its heat-rated composition resists oxidation and compression set, protecting downstream components from corrosive exhaust gases. Because it replicates original mounting geometry, swap-out requires no fabrication or custom hardware, delivering immediate reliability for routine trail maintenance.