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177555935930-0 - Northline Parts

Polaris RZR/Ranger 800 Throttle Body Intake Boot 1240494

SKU: NLT2D07240
$26.99 In Stock
$26.99
Sale price  $26.99 Regular price 
Ships for free in 2–4 business days.
Aftermarket throttle-body intake boot for select 2008-2010 Polaris RZR 800 and 2010 Ranger 800 applications; replaces 1240494, 1253564, and 5413766.
Estimated delivery between
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Compatible Models

We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.

Compatible equipment / model
  • Polaris RZR 800 — 2008-2010
  • Polaris RZR S 800 — 2008-2010
  • Polaris Ranger 800 — 2010
  • Polaris Ranger Crew 800 — 2010
  • Polaris Ranger HD 800 — 2010
  • Polaris Ranger XP 800 — 2010

Product Overview

A split intake boot can let unmetered air and trail dust enter the engine, causing a hanging idle, lean running, backfire, or poor throttle response. This replacement seals the joint between the throttle body and intake tract after a cracked or hardened original boot is found.

Because an intake leak can damage the engine, inspect the sealing faces, clamps, throttle body, and air-filter path at the same time.

Key Features & Performance

  • Replacement throttle-body intake boot
  • Approximately 50 mm throttle-side connection
  • Seals a common air-leak point
  • Aftermarket replacement for listed Polaris references

Replaces Part Numbers

  • 1240494
  • 1253564
  • 5413766

Common Uses

  • Cracked or separated rubber intake boot
  • High or hanging idle from an air leak
  • Dust tracks found downstream of the filter
  • Backfire or lean running after boot failure

Technical Specifications

  • Product Type: Throttle-body intake boot
  • Throttle-Side Diameter: Approximately 50 mm
  • Material: Rubber and metal construction
  • Replacement Type: Aftermarket

Installation & Fitment

  • Clean dirt away before opening the intake
  • Inspect both sealing surfaces and clamps
  • Seat the boot fully without twisting or pinching
  • Check the entire intake tract for leaks before use

Compatibility Notice

Match the original 1240494-style part, diameter, bolt pattern, angle, and throttle-body connection. Model families can use different boots by year.

Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown.

Frequently Asked Questions

Q: Can a cracked boot cause a high idle? A: Yes. Unmetered air can make the engine run lean and idle too fast.

Q: Why is dust inside the intake serious? A: Dirt bypassing the filter can wear rings, cylinder walls, and valves.

Q: Does this fit every Sportsman 800? A: No Sportsman fitment is claimed here without matching the exact original number.

Q: Should the clamps be reused? A: Only if they are straight, clean, and able to hold the boot evenly.

Part Summary

keywords: Polaris 1240494 intake boot, RZR 800 throttle body boot, Ranger 800 vacuum leak repair, 5413766 replacement, Polaris high idle intake leak, aftermarket RZR intake coupler

Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.

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