RETURN LEAK OFF PIPE WITH SENSOR TRANSIT/MONDEO 1.8 TDCI (4M5Q9K022AG)
$210.00 NZD incl. GST
In stockFreight calculated at checkout
- In business since 1927
- Backed by our Auckland workshop
- Capricorn preferred supplier
- Delivery across NZ and worldwide
Shipping & delivery
Freight is calculated at checkout by weight and volume. Orders over 25 kg or 2.5 m³: we'll email the freight cost after you order.
Standard delivery: 2–5 working days. Rural: 4–6 working days.
Click & Collect: we'll call to arrange a time at 77 Leonard Road, Mount Wellington, Auckland.
Outside New Zealand? Contact us for a freight quote.
Returns & warranty
Returns are handled under our refund policy. Your rights under the Consumer Guarantees Act are not affected.
For warranty claims, email sales@simmsdiesel.co.nz with proof of purchase and photos, and contact us before fitting a replacement. See warranty.
Product details
This Return Leak-Off Pipe with Sensor is a direct replacement fuel system component designed for Ford 1.8 TDCi diesel engines. It safely channels excess fuel from the injectors back into the fuel system while the integrated sensor helps ensure accurate monitoring and proper engine performance.
Manufactured to match OEM specifications, this return pipe delivers reliable fitment and long-lasting durability — ideal for replacing worn, cracked, or leaking lines that can compromise engine performance.
Key Features
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OEM-spec fitment for a direct replacement
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Built to meet original equipment performance standards
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Integrated sensor for accurate fuel return monitoring
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Durable construction for long service life
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Helps maintain proper diesel fuel system efficiency
Part Numbers
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OEM / Reference: 4M5Q-9K022-AG
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Supplier / Secondary: 1521487
Vehicle Applications
This part is suitable for the following Ford diesel-powered vehicles with 1.8 TDCi engines:
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Ford C-Max 1.8 TDCi (2007–2010)
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Ford Focus 1.8 TDCi (2004–2012)
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Ford Focus C-Max 1.8 TDCi (2005–2007)
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Ford Galaxy 1.8 TDCi (2006–2015)
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Ford Mondeo 1.8 TDCi (2007–2015)
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Ford S-Max 1.8 TDCi (2006–2014)
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Ford Tourneo Connect 1.8 TDCi (2002–2013)
Why Replace This Part?
A damaged or worn return leak-off pipe can lead to:
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Visible diesel fuel leaks
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Hard starting or rough idle
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Fumes in the engine bay or cabin
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Reduced fuel system efficiency
This quality replacement helps restore proper fuel return flow and reliable engine operation.
Fitment Notes
Please verify your vehicle’s year, engine type, and part number before ordering to ensure correct compatibility. If you’re unsure, our diesel specialists are happy to assist.
Need Help?
Questions about fitment or application? Contact us anytime — we’re here to help you find the right part.