1. Rocker Arms & Parts Engines Components For Sale
  2. sku: 14616432872111871
  3. AC DELCO 39ZDXXH12

AC DELCO 39ZDXXH12 Rocker Arm H3T

fits model: H2, H3. year: 2003–2010.

39zdxxh12 Ac Delco Rocker Arm For H2 H3 H3t 2003 2004 2005 2006 2007 2008 2009 2010

( Brand: Ac Delco ), ( Manufacturer Part Number: 39ZDXXH12 ), ( Type: Rocker Arm ), ( Fits 1: 2003-2009 Hummer H2 ), ( Fits 2: 2008-2010 Hummer H3 ), ( Fits 3: 2009-2010 Hummer H3t ), ( Fit Note: Engine Rocker Arm New ), ( Manufacturer Warranty: 12 Month Warranty ), ( Attention: Please Read All Notes To Confirm Fitment ), ( Cs-sku: 400 )

Review AC DELCO 39zdxh12 Rocker Arm H3t fits H2 H3 2003–2010

The AC Delco 39zdxxh12 is a premium quality rocker arm specifically designed for various models of H2, H3, and H3T vehicles from the years 2003 to 2010. This essential engine component is meticulously engineered to deliver superior performance and durability, ensuring that your vehicle continues to run smoothly.

The rocker arm is designed with a robust construction, featuring a precision-machined, forged steel body that can withstand the rigors of daily driving. The arm is also outfitted with durable, high-tensile steel pushrods and hydraulic lifters, which provide consistent valve actuation and contribute to efficient combustion.

The AC Delco 39zdxxh12 rocker arm also boasts advanced engineering features, such as a hydroformed design that enhances its strength while reducing weight. This results in improved engine response and overall performance. Additionally, the arm's smooth, polished surface ensures quiet operation, reducing unwanted engine noise.

This rocker arm is an excellent choice for vehicle owners seeking OE (Original Equipment) quality replacement parts. It is designed to fit and function identically to the original equipment, ensuring a seamless installation process and optimal vehicle performance. The part comes complete with all necessary hardware for installation, making it a convenient and hassle-free upgrade for your vehicle's engine.

In summary, the AC Delco 39zdxxh12 rocker arm is a high-performance, durable, and reliable replacement part designed specifically for various models of H2, H3, and H3T vehicles from 2003 to 2010. Its robust construction, advanced engineering features, and OE fitment make it an ideal choice for those seeking optimal engine performance and longevity.

Pros and Cons of Buying AC Delco 39zdxxh12 Rocker Arm for H2, H3, H3T (2003-2010)

The AC Delco 39zdxxh12 rocker arm is a popular aftermarket replacement part for various models of H2, H3, and H3T vehicles manufactured between 2003 and 2010. Let's examine the key advantages and disadvantages of purchasing this part.

Pros:

1. Original Equipment: This AC Delco rocker arm is a direct-fit replacement part, meaning it is designed to be an exact match to the original equipment used in your vehicle. This ensures proper engine function and reduces the likelihood of future issues.

2. High Quality: AC Delco is a well-known and reputable brand in the automotive industry. Their parts are engineered to meet or exceed OE specifications, providing you with a reliable and durable solution.

3. Improved Engine Performance: A faulty or worn-out rocker arm can negatively impact engine performance. Replacing it with a new, high-quality part like the AC Delco 39zdxxh12 can result in smoother operation, improved fuel efficiency, and better overall driving experience.

4. Peace of Mind: When you purchase a genuine AC Delco part, you are protected by the company's warranty. This added security gives you peace of mind knowing that your investment is protected.

Cons:

1. Cost: Original equipment replacement parts like the AC Delco 39zdxxh12 can be more expensive than aftermarket alternatives. However, the added benefits of a direct-fit and high-quality part may outweigh the initial cost.

2. Installation: Installing a new rocker arm can be a complex process, especially for those without experience in automotive repairs. It may be necessary to take your vehicle to a professional mechanic to ensure proper installation.

3. Availability: Depending on your location and the specificity of your vehicle model, the AC Delco 39zdxxh12 rocker arm may not be readily available at local auto parts stores. You may need to order it online and wait for its arrival.

Conclusion:

The AC Delco 39zdxxh12 rocker arm is a high-quality, direct-fit replacement part for various models of H2, H3, and H3T vehicles. While it may come with a higher cost and require professional installation, its benefits include improved engine performance, original equipment fitment, and the peace of mind that comes with purchasing a genuine AC Delco part. Ultimately, the decision to buy this rocker arm depends on your budget, availability, and personal preference for aftermarket parts versus OE replacements. If you value the benefits of an exact fit and high-quality part, the AC Delco 39zdxxh12 is an excellent choice for your vehicle repair needs.

Recommendation:

If you are in the market for a new rocker arm for your H2, H3, or H3T vehicle (2003-2010), and you value the benefits of a direct-fit, high-quality part, the AC Delco 39zdxxh12 is a solid recommendation. It may come with a higher cost and require professional installation, but the improved engine performance, peace of mind, and original equipment fitment make it a worthwhile investment.

Details:

FOR INTKE VALVE ROCKER ARM SEE PART NUMBER 12569167, QTY 8, 2008 - 2009 Hummer H2. Rocker Arm 39ZDxH12 for H2 H3 H3T 2003 2004 2005 2006 2007 2008 2009 2010: Brand: AC Delco condition: New, Notes Engine New Features: GM Engineers design and validate OE parts specifically your Chevrolet, Buick, GMC, or Cadillac vehicle. GM regularly updates production and service part designs to integrate new materials technologies. Vehicle, Fitment Notes: ARM, VALVE ROCKER EXHAUST.

Some GM Genuine Parts may have formerly appeared as AcDelco Original Equipment OE.

part #: 39zdxxh12 price

  • $32.18

specifications rockeareng:

  • for models: H2, H3
  • for years: 2003-2010
  • brand: Ac Delco
  • mpn: 39zdxxh12
  • type: Rocker Arm
  • fits 1: 2003-2009 Hummer H2
  • fits 2: 2008-2010 Hummer H3
  • fits 3: 2009-2010 Hummer H3t
  • fit note: Engine Rocker Arm New
  • manufacturer warranty: 12 Month Warranty
  • attention: Please Read All Notes To Confirm Fitment
  • cs-sku: 400

general rockeareng:

  • condition: New
  • Engines Engine Parts > Valvetrain Components > Rocker Arms Parts

shipping rockeareng:

  • class: Standard
  • service: Standard
  • transit: 3-7 Days
  • type: Fixed
  • cost: $0.00

returns rockeareng:

  • paid by: Seller
  • policy: Returns Accepted
  • time: 30 Days

payments rockeareng:

  • other
  • wallet: Paypal
  • credit card: Discover

seller rockeareng:

  • # reviews: 57812
  • rating: 97.1%
  • city: Raynham, MassAchusetts

offer rockeareng:

  • availability: In Stock
  • started: May 6, 2026
  • options: Ship-to-home
  • quantity: 1
  • sold: 0
for models: h2, h3, for years: 2003-2010, type: rocker arm, fits 1: 2003-2009 hummer h2, fits 2: 2008-2010 hummer h3, fits 3: 2009-2010 hummer h3t, fit note: engine rocker arm new, manufacturer warranty: 12 month warranty, attention: please read all notes to confirm fitment, cs-sku: 400,
category: auto parts > engines engine parts > valvetrain components > rocker arms parts, sku: 14616432872111871,
Ac Delco 39ZDXXH12 Is Similar To:
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1 offer $32.18 USD
  • New. Offer #1 priced at $32.18 + $0.00 shipping estimate = $32.18* total. Condition: New. FOR INTKE VALVE ROCKER ARM SEE PART NUMBER 12569167, QTY 8.FREE SHIPPING

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