what is the diameter of this pulley in millimeters?

The precise diameter of the pulley tensioner is 3.54" wide x 1.18" deep or 90mm x 30mm ... I just now noticed that this question was posted and even answered 8 yrs ago! .. so I'm hoping that within the 8yrs since the original post the person was able to get the information they were seeking

would like to know if this will fit the passenger and driver side i have a/c and i have a ford 2008 f150 stx 4x4 4.6L extended cab need driver side

I'm not sure why you are asking about if it will fit driver/passenger side because it's just a tensioner pulley. I apologize if I missed something nor am I trying to be disrespectful in any way.. anyhow I hope you got your question answered by the right person. Have a blessed day

Does it a fit a 2007 ford taurus se i seen someone on youtube say it will fit but on here and on dorman's website says it doesn't

Sorry it will not work for that vehicle

what is adjustable on it? and it mentions steel or plastic, can I be sure i get steel?

Not sure why it states steel or plastic. There is nothing adjustable on it.It fit great. No problems installing

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Description

⚙️ Upgrade your drive with precision and power — don’t let a worn pulley slow you down!

BUILT TO LAST - Crafted from high-grade steel, this pulley resists vibration and corrosion for extended durability under demanding conditions.
PRECISION OEM FIT - Engineered to match original pulley specs perfectly, ensuring hassle-free installation and optimal performance.
TRUSTED EXPERTISE - Backed by over a century of automotive innovation and quality assurance from Dorman’s US-based experts.
FIT CONFIRMATION TOOL - Use the garage tool to verify compatibility with your exact vehicle make, model, and trim—never guess again.
RESTORE PEAK PERFORMANCE - Replace worn or failed pulleys to eliminate belt slippage and maintain smooth engine operation.

The Dorman 419-602 Idler Pulley is a direct replacement steel pulley designed to restore the accessory drive belt tensioner’s function on select vehicle models. Engineered for durability and exact OEM fit, it combats vibration and corrosion to ensure long-lasting, reliable performance. Supported by Dorman’s century-long automotive expertise and a vehicle-specific fit confirmation tool, this pulley guarantees seamless installation and optimal engine belt operation.

Specifications

Manufacturer	Dorman Products
Brand	Dorman
Model	419-602
Item Weight	8.8 ounces
Product Dimensions	4.5 x 1.4 x 4.5 inches
Item model number	419-602
Is Discontinued By Manufacturer	No
Exterior	Machined
Manufacturer Part Number	419-602
OEM Part Number	36275; 36299; 38001; 45975; 49001; 49154; 5975; 89006; 89097; GM1413162; KR-139032; SK89006; 10067479; 10069964; 10124631; 10129569; 10141997; 10187662; 10229114; 10237275; 12552358; 12552361; 12552509; 12555244; 12555245; 12555609; 12563084; 12564505; 12564510; 12580771; 12580773; 12669569; 14102645; 15662645; 166200W100; 166200W101; 1L2Z8678AB; 1L2Z8678AD; 22521201; 25527750; 2F2Z6C348AC; 31170-P8A-A01; 31170-P8F-A01; 3543027; 4483214; 4483469; 4536074; 4536154; 4536154AB; 4536173; 4556027; 4612894; 4612894AB; 4612894AC; 4792112; 4792112AD; 4792112AE; 4792410AC; 4792410AD; 53002905; 53030958; 53030958AB; 5L3Z8678BA; 6L2Z6C348A; 8-14102-645-0; 8101419970; 83505475; E7TZ6B209A; E7TZ6B209D; E9SZ8678A; F0ZZ6B209B; F1ZZ6B209C; F2TZ6B209C; F2UZ6B209A; F2UZ6B209B; F4CZ 6B209 A; F5RZ6C348B; F7CZ6C348AA; XS4Z6B209AA; XW4Z6B209AA; XW4Z8678CA; XW4Z8678DA; YS4Z8678BB
Position	Center

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