Dorman 420-123 Timing Chain Tensioner Kit 00-19 Ford F-150 Mercury Mountaineer
Confirm Fitment Before You Buy
Not sure it fits? Message Year/Make/Model/Engine (2WD/4WD if applicable) and we’ll help confirm compatibility.
Why buy from Koskowski Automotive?
• 50+ years (since 1972) • Dorman Authorized Seller • Fast shipping • Easy returns
Regular price
$37.96
Select your vehicle at the top of the page to check fitment.
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Vehicle Fitment: Use the table below to match your exact configuration. If you don’t see your exact setup, message us before ordering.
This engine timing chain tensioner is designed to match the fit and function of the original tensioner on specified applications. Made of quality materials, it is engineered for reliable performance and durability.
- Direct replacement - this engine timing chain tensioner is designed to match the fit and function of the original tensioner on specified applications
- Recommended for replacement when a new timing chain and pulleys are installed
- Durable construction - this part is made from quality materials to ensure reliable performance and long service life
- Trustworthy quality - backed by team of product experts in the United States and more than a century of automotive experience
Vehicle Fitment
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2002-2011 | Ford | Crown Victoria | Kit (Includes Left and Right); 4.6L V8 | |
| 2003-2014 | Ford | E-150 | Kit (Includes Left and Right); 4.6L V8 | |
| 2002-2014 | Ford | E-150 | Kit (Includes Left and Right); 5.4L V8 | |
| 2003-2005 | Ford | E-150 Club Wagon | Kit (Includes Left and Right); 5.4L V8 | |
| 2003-2005 | Ford | E-150 Club Wagon | Kit (Includes Left and Right); 4.6L V8 | |
| 2007-2008 | Ford | E-150 Econoline | Kit (Includes Left and Right); 5.4L V8 | |
| 2001-2002 | Ford | E-150 Econoline | Kit (Includes Left and Right); 5.4L V8 | |
| 2000-2002 | Ford | E-150 Econoline | Kit (Includes Left and Right); 4.6L V8 | |
| 2001-2002 | Ford | E-150 Econoline Club Wagon | Kit (Includes Left and Right); 5.4L V8 | |
| 2000-2002 | Ford | E-150 Econoline Club Wagon | Kit (Includes Left and Right); 4.6L V8 | |
| 2003-2014 | Ford | E-250 | Kit (Includes Left and Right); 4.6L V8 | |
| 2003-2014 | Ford | E-250 | Kit (Includes Left and Right); 5.4L V8 | |
| 2001-2002 | Ford | E-250 Econoline | Kit (Includes Left and Right); 5.4L V8 | |
| 2005 | Ford | E-350 Club Wagon | Kit (Includes Left and Right); 6.8L V10 | |
| 2003 | Ford | E-350 Club Wagon | Kit (Includes Left and Right); 6.8L V10 | |
| 2002-2005 | Ford | E-350 Club Wagon | Kit (Includes Left and Right); 5.4L V8 | |
| 2007-2008 | Ford | E-350 Econoline | Kit (Includes Left and Right); 5.4L V8 | |
| 2001-2002 | Ford | E-350 Econoline Club Wagon | Kit (Includes Left and Right); 5.4L V8 | |
| 2000-2002 | Ford | E-350 Econoline Club Wagon | Kit (Includes Left and Right); 6.8L V10 | |
| 2004-2019 | Ford | E-350 Super Duty | Kit (Includes Left and Right); 6.8L V10 | |
| 2004-2016 | Ford | E-350 Super Duty | Kit (Includes Left and Right); 5.4L V8 | |
| 2019 | Ford | E-450 Super Duty | Kit (Includes Left and Right); 6.8L V10 | |
| 2006-2016 | Ford | E-450 Super Duty | Kit (Includes Left and Right); 5.4L V8 | |
| 2003-2017 | Ford | E-450 Super Duty | Kit (Includes Left and Right); 6.8L V10 | |
| 2003-2004 | Ford | E-450 Super Duty | Kit (Includes Left and Right); 5.4L V8 | |
| 2002 | Ford | E-550 Econoline Super Duty | Kit (Includes Left and Right); 6.8L V10 | |
| 2003 | Ford | E-550 Super Duty | Kit (Includes Left and Right); 6.8L V10 | |
| 2001-2006 | Ford | Econoline | Kit (Includes Left and Right); 5.4L V8 | |
| 2010-2014 | Ford | Econoline Wagon | Kit (Includes Left and Right); 5.4L V8 | |
| 2000-2005 | Ford | Excursion | Kit (Includes Left and Right); 6.8L V10 | |
| 2000-2005 | Ford | Excursion | Kit (Includes Left and Right); 5.4L V8 | |
| 2019 | Ford | Expedition | Kit (Includes Left and Right); 5.4L V8 | |
| 2002-2004 | Ford | Expedition | Kit (Includes Left and Right); 4.6L V8 | |
| 2000-2014 | Ford | Expedition | Kit (Includes Left and Right); 5.4L V8 | |
| 2019 | Ford | Explorer | Kit (Includes Left and Right); 4.6L V8 | |
| 2002-2010 | Ford | Explorer | Kit (Includes Left and Right); 4.6L V8 | |
| 2007-2010 | Ford | Explorer Sport Trac | Kit (Includes Left and Right); 4.6L V8 | |
| 2019 | Ford | F-150 | Kit (Includes Left and Right); 5.4L V8 | |
| 2019 | Ford | F-150 | Kit (Includes Left and Right); 4.6L V8 | |
| 2002-2010 | Ford | F-150 | Kit (Includes Left and Right); 4.6L V8 | |
| 2001 | Ford | F-150 | Exc. Engine Tag No. 0G-842/843; Kit (Includes Left and Right); 4.6L V8 | |
| 2000-2010 | Ford | F-150 | Kit (Includes Left and Right); 5.4L V8 | |
| 2019 | Ford | F-250 Super Duty | Kit (Includes Left and Right); 6.8L V10 | |
| 2019 | Ford | F-250 Super Duty | Kit (Includes Left and Right); 5.4L V8 | |
| 2002-2010 | Ford | F-250 Super Duty | Kit (Includes Left and Right); 5.4L V8 | |
| 2000-2010 | Ford | F-250 Super Duty | Kit (Includes Left and Right); 6.8L V10 | |
| 2019 | Ford | F-350 Super Duty | Kit (Includes Left and Right); 5.4L V8 | |
| 2019 | Ford | F-350 Super Duty | Kit (Includes Left and Right); 6.8L V10 | |
| 2002-2010 | Ford | F-350 Super Duty | Kit (Includes Left and Right); 5.4L V8 | |
| 2000-2010 | Ford | F-350 Super Duty | Kit (Includes Left and Right); 6.8L V10 | |
| 2000-2019 | Ford | F-450 Super Duty | Kit (Includes Left and Right); 6.8L V10 | |
| 2000-2019 | Ford | F-550 Super Duty | Kit (Includes Left and Right); 6.8L V10 | |
| 2015-2018 | Ford | F53 | Kit (Includes Left and Right); 6.8L V10 | |
| 2011 | Ford | F53 | Kit (Includes Left and Right); 6.8L V10 | |
| 2006-2009 | Ford | F53 | Kit (Includes Left and Right); 6.8L V10 | |
| 2000-2004 | Ford | F53 | Kit (Includes Left and Right); 6.8L V10 | |
| 2015-2017 | Ford | F650 | Kit (Includes Left and Right); 6.8L V10 | |
| 2016-2017 | Ford | F750 | Kit (Includes Left and Right); 6.8L V10 | |
| 2019 | Ford | GT | Kit (Includes Left and Right); 5.4L V8 | |
| 2005-2006 | Ford | GT | Kit (Includes Left and Right); 5.4L V8 | |
| 2003-2004 | Ford | Grand Marquis | Kit (Includes Left and Right); 4.6L V8 | |
| 2001 | Ford | Grand Marquis | Kit (Includes Left and Right); 4.6L V8 | |
| 2019 | Ford | Mustang | Kit (Includes Left and Right); 4.6L V8 | |
| 2001-2010 | Ford | Mustang | Kit (Includes Left and Right); 4.6L V8 | |
| 2003-2005 | Lincoln | Aviator | Kit (Includes Left and Right); 4.6L V8 | |
| 2002-2003 | Lincoln | Blackwood | Kit (Includes Left and Right); 5.4L V8 | |
| 2010 | Lincoln | Mark LT | Kit (Includes Left and Right); 5.4L V8 | |
| 2006-2008 | Lincoln | Mark LT | Kit (Includes Left and Right); 5.4L V8 | |
| 2000-2014 | Lincoln | Navigator | Kit (Includes Left and Right); 5.4L V8 | |
| 2003-2011 | Lincoln | Town Car | Kit (Includes Left and Right); 4.6L V8 | |
| 2002 | Lincoln | Town Car | Kit (Includes Left and Right); 4.6L V8; Plastic | |
| 2002-2011 | Mercury | Grand Marquis | Kit (Includes Left and Right); 4.6L V8 | |
| 2003-2004 | Mercury | Marauder | Kit (Includes Left and Right); 4.6L V8 | |
| 2002-2010 | Mercury | Mountaineer | Kit (Includes Left and Right); 4.6L V8 |
Please confirm the part number and your vehicle's year, make, model and engine before ordering. Questions? Message us with your VIN and we'll check fitment for you.
Specifications
| Brand | Dorman |
|---|---|
| Part Number | 420-123 |
| UPC | 037495279598 |
| Adjustable | No |
| Mounting Bracket Included | No |
| Installation Hardware Included | No |
| Installation Instructions Included | No |
| Item Grade | Standard Replacement |
| Material | Steel |
| Package Contents | 2 Timing Chain Tensions |
| Country of Origin | Taiwan |
| Warranty | Limited Lifetime |
OE & Interchange Numbers
| 1L3Z6L266AA | Ford (OE) |
|---|---|
| XL1Z6L266AA | Ford (OE) |
| 9-5433 | Interchange |
| T65433 | Interchange |
| 420123 | Interchange |
| 9-5432 | Interchange |
| BT429 | Interchange |
| SK420123 | Interchange |