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116642333543-0 - Northline Parts

Cooling Water Outlet Flange XW4Z-8A520-AF for 2000-2002 Lincoln LS & 2002-2005 Ford Thunderbird

SKU: NLT1K00873
$47.99 In Stock
$47.99
Sale price  $47.99 Regular price 
Ships for free in 2–4 business days.
This aftermarket engine-cooling water outlet flange replaces Ford XW4Z-8A520-AF and SK121451 for compatible 2000-2002 Lincoln LS and 2002-2005 Ford Thunderbird applications.
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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
  • Lincoln LS 3.0L V6, 2000-2002
  • Lincoln LS 3.9L V8, 2000-2002
  • Ford Thunderbird 3.9L V8, 2002-2005

Product Overview

Coolant odor, residue in the engine valley, a slow unexplained coolant loss, or visible cracking around the outlet may lead to this flange. Replacing a leaking component helps restore cooling-system sealing before coolant loss causes overheating or engine damage.

Cooling leaks can travel and collect away from their source. Pressure-test the system and match engine, outlet shape, hose connections, sensor ports, mounting pattern, and reference number.

Key Features & Performance

  • Replacement cooling-system water outlet/flange
  • Cross-referenced to XW4Z-8A520-AF
  • Addresses cracked plastic, distorted sealing surfaces, or leaking connections
  • Aftermarket direct-style component for matching engines

Replaces Part Numbers

  • XW4Z-8A520-AF
  • XW4Z8A520AF
  • SK121451

Common Uses

  • Repairing visible coolant seepage at the outlet
  • Replacing a cracked or brittle flange
  • Correcting coolant odor and residue after pressure testing
  • Preventing repeat overheating after the confirmed leak is found

Technical Specifications

  • Product Type: Engine coolant outlet flange
  • System: Engine cooling
  • Compatible Vehicles: Select Lincoln LS and Ford Thunderbird
  • Replacement Type: Aftermarket

Installation & Fitment

  • Work only on a fully cooled and depressurized engine
  • Pressure-test and identify all leak sources
  • Clean mating surfaces without damaging them
  • Refill with specified coolant, bleed air correctly, and retest for leaks

Compatibility Notice

Overheating can damage the engine. Stop driving if temperature rises, coolant is rapidly lost, or steam appears; inspect related hoses, reservoir, thermostat, pump, and other plastic outlets.

Frequently Asked Questions

Q: Can coolant collect away from the actual leak? A: Yes. Pressure testing and careful inspection help locate the source.

Q: Does it fit later Lincoln LS years? A: The researched fitment here is limited to 2000-2002 LS applications; verify any other year independently.

Q: Why bleed the system? A: Trapped air can reduce circulation and cause overheating or false coolant-level symptoms.

Part Summary

keywords: XW4Z-8A520-AF coolant flange, Lincoln LS water outlet replacement, Thunderbird 3.9 coolant leak, SK121451 cooling flange, 2000 Lincoln LS coolant part, 2005 Thunderbird water outlet, engine valley coolant leak repair, aftermarket Ford cooling outlet

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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