1. Rocker Arms & Parts Engines Components For Sale
  2. sku: 14617460355553881
  3. AC DELCO 51TTDXC17

AC DELCO 51TTDXC17 Rocker Arm H3T

fits model: H2, H3. year: 2003–2010.

51ttdxc17 Ac Delco Rocker Arm For H2 H3 H3t 2003 2004 2005 2006 2007 2008 2009 2010

( Brand: Ac Delco ), ( Manufacturer Part Number: 51TTDXC17 ), ( Type: Rocker Arm ), ( Fits 1: 2003-2009 Hummer H2 ), ( Fits 2: 2008-2010 Hummer H3 ), ( Fits 3: 2009-2010 Hummer H3t ), ( Fit Note: Genuine Gm ), ( Manufacturer Warranty: 12 Month Warranty ), ( Attention: Please Read All Notes To Confirm Fitment ), ( Cs-sku: 400 )

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

The AC Delco 51TTDXC17 is a premium quality rocker arm specifically designed for use in General Motors H2, H3, H3T vehicles manufactured between 2003 and 2010. This component is an essential part of the engine's valvetrain system, responsible for converting linear motion of the camshaft into reciprocating motion of the piston.

This particular rocker arm is forged from high-strength steel, ensuring superior durability and resistance to wear and fatigue. It features a robust design with five bearing surfaces that ensure smooth and efficient operation. Each bearing surface is precision machined to ensure a perfect fit and minimize friction.

The 51TTDXC17 rocker arm comes with pre-installed, high-performance, self-lubricating bushings. These bushings are designed to reduce the need for regular maintenance and provide excellent wear resistance. The bushings are made from a composite material that offers superior load-bearing capacity and durability compared to traditional bushings.

The rocker arms are also designed with a hydraulic roller tip. This design allows for more precise valve control and improved engine performance. The roller tip also reduces the load on the valve springs, resulting in reduced valve train noise and improved fuel economy.

The AC Delco 51TTDXC17 rocker arm is also engineered to meet or exceed OE specifications. This ensures that it will provide the same level of performance and reliability as the original equipment part. The rocker arm is also covered by AC Delco's warranty, giving you peace of mind and protection against any manufacturing defects.

In summary, the AC Delco 51TTDXC17 rocker arm is a high-quality, durable, and reliable replacement part for the rocker arm in your General Motors H2, H3, or H3T vehicle. Its robust design, high-performance bushings, and hydraulic roller tip make it an excellent choice for those seeking to maintain or improve their vehicle's engine performance.

Pros and Cons of buying a AC Delco 51TTDXC17 Rocker Arm for H2, H3, H3T (2003-2010)

Introduction:

The AC Delco 51TTDXC17 is a replacement rocker arm designed for various models of the H2, H3, and H3T vehicles from 2003 to 2010. If you're considering purchasing this part, it's essential to weigh its advantages and disadvantages before making a decision.

Pros:

1. Original Equipment (OE): The AC Delco 51TTDXC17 is a direct replacement part, meaning it's designed to be an exact match for the original equipment used in your vehicle. This ensures a perfect fit and optimal performance.

2. High-Quality Material: This rocker arm is manufactured using high-quality materials, such as forged steel. Forged steel is known for its strength, durability, and resistance to wear and tear, making it an ideal choice for automotive parts.

3. Wide Compatibility: The AC Delco 51TTDXC17 is compatible with a wide range of H2, H3, and H3T models from 2003 to 2010. This makes it a versatile option for vehicle owners who want a reliable replacement part that can cater to various vehicle types.

4. Reduced Engine Noise: Worn-out or damaged rocker arms can lead to excessive engine noise. Replacing your old rocker arm with a new one, such as the AC Delco 51TTDXC17, can help reduce engine noise, providing a smoother and quieter driving experience.

5. Enhanced Engine Performance: A worn-out or malfunctioning rocker arm can negatively impact engine performance. Installing a new, high-quality rocker arm like the AC Delco 51TTDXC17 can help restore your engine's power and efficiency.

Cons:

1. Cost: The AC Delco 51TTDXC17 is a premium replacement part, and its price reflects its high-quality materials and wide compatibility. This might be a deterrent for some vehicle owners who are looking for more affordable options.

2. Installation Complexity: Installing the AC Delco 51TTDXC17 might require some mechanical skills and knowledge. If you're not comfortable performing the installation yourself, you may need to hire a professional mechanic, which could add to the overall cost.

Conclusion:

The AC Delco 51TTDXC17 rocker arm is a high-quality, direct replacement part that offers several advantages for H2, H3, and H3T vehicle owners, including enhanced engine performance, reduced engine noise, and wide compatibility. However, its cost and installation complexity might be a drawback for some. Ultimately, if you're looking for a reliable and long-lasting replacement part and are willing to invest in it, the AC Delco 51TTDXC17 is an excellent choice.

Recommendation:

If you're in the market for a replacement rocker arm for your H2, H3, or H3T vehicle (2003-2010), the AC Delco 51TTDXC17 is a solid option to consider. Its high-quality materials, wide compatibility, and potential for improved engine performance make it a worthwhile investment. However, before making a purchase, ensure you have the necessary mechanical skills and knowledge to install it yourself or budget for professional installation costs.

Details:

Rocker Arm 51TTDXC17 for H2 H3 H3T 2003 2004 2005 2006 2007 2008 2009 2010: Brand: AC Delco condition: New, Notes Genuine GM, Detailed Applications Vehicle Engine, 2003 - 2009 Hummer H2, 2008 - 2010 H35.3L V8, 2009 - 2010 H3T5.3L V8.

part #: 51ttdxc17 price

  • $33.15

specifications rockeareng:

  • for models: H2, H3
  • for years: 2003-2010
  • brand: Ac Delco
  • mpn: 51ttdxc17
  • type: Rocker Arm
  • fits 1: 2003-2009 Hummer H2
  • fits 2: 2008-2010 Hummer H3
  • fits 3: 2009-2010 Hummer H3t
  • fit note: Genuine Gm
  • manufacturer warranty: 12 Month Warranty
  • attention: Please Read All Notes To Confirm Fitment
  • cs-sku: 400

shipping rockeareng:

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

general rockeareng:

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

payments rockeareng:

  • wallet: Google-pay
  • credit card: Discover
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seller rockeareng:

  • city: Phoenix, Arizona
  • rating: 97.1%
  • # reviews: 57815

offer rockeareng:

  • sold: 0
  • options: Ship-to-home
  • quantity: 1
  • started: May 6, 2026
  • availability: In Stock

returns rockeareng:

  • paid by: Seller
  • time: 30 Days
  • policy: Returns Accepted
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: genuine gm, 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: 14617460355553881,
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