- Order number: 071-520303
Eliminate Unwanted Air Leaks! – Intake Manifold Boot for Polaris Sportsman 700 & Ranger 700 (OEM: 1253527)
Flawless Sealing for EFI Engines – High-quality replacement intake runner in OEM quality
Maintain a perfect air-fuel ratio and protect your twin-cylinder engine from leaning out! This Premium Intake Manifold Boot is the critical sealing component connecting the throttle body to the cylinder head on Polaris 700cc Electronic Fuel Injection (EFI) powerplants. It is manufactured to match the original factory part number 1253527.
Over time, under-hood heat, engine vibrations, and fuel vapors cause the factory rubber boot to dry rot, crack, or delaminate. These cracks allow unmetered "lean air" to bypass the injection system. This results in an erratic idle, hard cold starts, backfiring, and dangerous combustion chamber overheating. Replacing a weathered boot with this fuel-resistant, high-temperature composite part restores crisp throttle response and safeguards your engine.
Technical Specifications & Details
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Component: Intake Manifold Boot / Throttle Body Flange.
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OEM Part Number: 1253527.
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Function: Provides a leak-free, high-vibration bridge between the throttle body and the cylinder head.
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Material: Heavy-duty, fuel-resistant engineered elastomer with a rigid mounting base.
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Compatibility: Polaris Sportsman 700 and Ranger 700 Twin EFI models (2004–2009).
Installation & Maintenance Instructions: (For guidance purposes only)
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Visual Check: Before installation, perform a visual check. Match the bolt hole spacing on the flange, the throat inner diameter, and the angular alignment with your old part.
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Mating Surface Prep: Scrape away any residual gasket material or corrosion from the aluminum cylinder head port before mounting. Keep the surface completely dry and clean.
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Torque Sequence: Hand-thread the mounting bolts first. Tighten them evenly in an alternating pattern to the factory-recommended torque specification. Over-tightening will warp the flange and create a permanent air leak. Ensure the boot-to-throttle body clamp is seated squarely in its retaining groove before locking it down.