Product Description

MDS Lifters & Gaskets & Camshaft Kit for Ram 1500 5.7L 09-19 Hemi V8 Replacement

Feature:
Multi-displacement Svstem (MDS for short) is a unique engine technology; if the engine adopts MDS technology, it can switch the working cylinder of the engine between 8-cylinder and 4-cylinder.At the same time, the MDS system can run with 4 cylinders or 8 cylinders by judging the engine load and working conditions. The engine closes 4 cylinders symmetrically, and the remaining 4 cylinders form a V4 engine, so that the engine can still maintain Better ride comfort; in addition, the data given by engine manufacturers equipped with the MDS system is a 20% increase in fuel economy.

This technology is most suitable for multi-cylinder engines, and effectively reduces fuel consumption during traffic jams without affecting the driver's pursuit of the acceleration stimulation of large-displacement models. For example, after a conventional 8-cylinder engine adopts this technology, it is equivalent to installing two independent 4-cylinder engines, which can run one engine and let the other rest according to the needs of driving.

Specifications:
Condition: Brand New
Manufacturer Part Number: 53021726AD; 53021726AF; 53021726AE; 53021726AC
OE/OEM Part Number: 5038785AB, 5038786AB, 53021727AC, 53021729AC

Fitment:
Fits For MDS Hemi Engine
For Chrysler Aspen 5.7L Engine V8 2009
For Dodge Durango 5.7L Engine 2009
For Dodge Ram 1500 5.7L Engine 2009-2010
For Ram 1500 5.7L Engine 2011-2019

Package included:
as the picture shows

Note:
Please Carefully Check Whether the OE Number And Picture are What You Need.Before Buying. If You are Not Sure Whether It Fits, Please Writer to us Message.

⚠ FITMENT VERIFICATION REQUIRED

• Confirm [YEAR][MAKE][MODEL][ENGINE] match

• Must match OEM#: [XXX-XXX-XXX]

• No returns for incorrect purchases

✅ Need help? Send:

    1: VIN (17-digit preferred)

    2:Old part photos

    3:Vehicle Year/Make/Model/Engine Size

✔ 3 business day free shipping within United States

✔ Delivery Time: 3-5 business days (continental U.S.).

✔ Order Processing: Ships within 3 business day (Mon-Fri, excludes holidays).

✔ Tracking Info: Provided automatically via eBay.

✔ All orders will be shipped through USPS First Class, UPS and Fedex depends on the weight of the items.

✔ Shipping notification will be emailed to you once package has been shipped

Fast & Reliable Shipping – Your order is our priority!

Order Processing: 72 hours (Mon-Fri).

❗ We package all items with care to ensure safe arrival!

Tracking number emailed as soon as your order ships!

🔹 Ships from U.S. Warehouse – No long waits!
🔹 Standard Shipping (Free): 3-5 business days (U.S. only). ULTRA-FAST SHIPPING – Because you shouldn't wait!

🔹 Hassle-Free 60-Day Returns

We want you to be completely satisfied! If there's any issue, please message us first before opening a return request—we'll do our best to resolve it quickly.

🔹 Return Conditions:

✅ Contact us immediately if the item is defective/damaged (photos/video required)

✅ Item must be unused in original condition with all packaging

✅ Repack securely to prevent shipping damage

🔹Important Notes:
• Returns may be refused if item shows signs of use, wear, or missing packaging
• eBay may review returns where the reason appears inaccurate
• We strive to resolve all return requests as quickly as possible

🔹For Fastest Service:
• Please contact us before opening a return
• Select the most accurate reason for your return

🔹Why Contact Us First?
We often resolve issues without requiring a return!
Possible solutions may include:
• Partial refund
• Replacement parts
• Step-by-step troubleshooting

🔹 Refund Process:

    We inspect returns upon arrival (3-5 business days)

    Approved refunds are issued to your original payment method

    Bank processing times may vary

We're here to help—just message us! 

🔹Warranty Coverage:

90-365 Day Coverage (varies by product - see listing details)

✓ Excludes: Physical damage, liquid exposure, unauthorized repairs

✓ Required: Proof of purchase + clear defect photos/video

✓ Solution: Repair/replacement at seller's discretion

🔹Claim Process:

    Contact us within warranty period

    Provide order number + defect evidence

We respond within 48h with solution

🔹 Our Feedback Promise

⭐ Your Satisfaction Matters Most!

We work hard to earn your 5-star experience. Before leaving feedback, please:

1️⃣ Contact us first if there's any issue – we'll make it right!

2️⃣ Verify your item meets expectations (check sizing/compatibility if applicable)

3️⃣ Allow reasonable time for shipping/delivery

🔹 Ideal Feedback Includes:

✔ "Accurate description, fast shipping"

✔ "Great customer service"

✔ "Well-packaged, as advertised"

🔹 Problem Resolution Guarantee:

• Message us within 3 days of delivery for:

    Refunds/Replacements

    Missing parts inquiries

    Product guidance

🔹 Please Avoid:

• Feedback related to shipping carriers (we can't control delays)

• Comments about pricing (set by market value)

• Claims without prior contact attempts

🔹 General Reminders:

• Check your spam folder for tracking emails

• Inspect packages before discarding outer boxes

• Save receipts for warranty purposes

Welcom to Topteng!

Topteng is a research and development, sales and service With a professional high tech enterprise based in Hongkong, and enjoying convenient transportation access. We specialized in developing and selling Auto Parts, such us car light,grille,Mirrors,Tire,Roof Rack,Car Hardtops, Roof Panels & Parts, etc. So that we can provide customers with various types of high-quality products. 

More than 10 years rich experience and have professional production line.So have many positive feedback on eBay!  

At the same time,we have many warehouses around the U.S, ensuring that your parcels in the fastest shipping. 

Our primary mission is your 100% satisfaction with our products & service! 

We look forward to your positive feedback on our shop!

Shipping

✔ 3 business day free shipping within United States

✔ Delivery Time: 3-5 business days (continental U.S.).

✔ Order Processing: Ships within 3 business day (Mon-Fri, excludes holidays).

✔ Tracking Info: Provided automatically via eBay.

✔ All orders will be shipped through USPS First Class, UPS and Fedex depends on the weight of the items.

✔ Shipping notification will be emailed to you once package has been shipped

Fast & Reliable Shipping – Your order is our priority!

Order Processing: 72 hours (Mon-Fri).

❗ We package all items with care to ensure safe arrival!

Tracking number emailed as soon as your order ships!

🔹 Ships from U.S. Warehouse – No long waits!
🔹 Standard Shipping (Free): 3-5 business days (U.S. only). ULTRA-FAST SHIPPING – Because you shouldn't wait!

Return

🔹 Hassle-Free 60-Day Returns

We want you to be completely satisfied! If there's any issue, please message us first before opening a return request—we'll do our best to resolve it quickly.

🔹 Return Conditions:

✅ Contact us immediately if the item is defective/damaged (photos/video required)

✅ Item must be unused in original condition with all packaging

✅ Repack securely to prevent shipping damage

🔹Important Notes:
• Returns may be refused if item shows signs of use, wear, or missing packaging
• eBay may review returns where the reason appears inaccurate
• We strive to resolve all return requests as quickly as possible

🔹For Fastest Service:
• Please contact us before opening a return
• Select the most accurate reason for your return

🔹Why Contact Us First?
We often resolve issues without requiring a return!
Possible solutions may include:
• Partial refund
• Replacement parts
• Step-by-step troubleshooting

🔹 Refund Process:

    We inspect returns upon arrival (3-5 business days)

    Approved refunds are issued to your original payment method

    Bank processing times may vary

We're here to help—just message us! 

Warranty

🔹Warranty Coverage:

90-365 Day Coverage (varies by product - see listing details)

✓ Excludes: Physical damage, liquid exposure, unauthorized repairs

✓ Required: Proof of purchase + clear defect photos/video

✓ Solution: Repair/replacement at seller's discretion

🔹Claim Process:

    Contact us within warranty period

    Provide order number + defect evidence

We respond within 48h with solution

Feedback

🔹 Our Feedback Promise

⭐ Your Satisfaction Matters Most!

We work hard to earn your 5-star experience. Before leaving feedback, please:

1️⃣ Contact us first if there's any issue – we'll make it right!

2️⃣ Verify your item meets expectations (check sizing/compatibility if applicable)

3️⃣ Allow reasonable time for shipping/delivery

🔹 Ideal Feedback Includes:

✔ "Accurate description, fast shipping"

✔ "Great customer service"

✔ "Well-packaged, as advertised"

🔹 Problem Resolution Guarantee:

• Message us within 3 days of delivery for:

    Refunds/Replacements

    Missing parts inquiries

    Product guidance

🔹 Please Avoid:

• Feedback related to shipping carriers (we can't control delays)

• Comments about pricing (set by market value)

• Claims without prior contact attempts

🔹 General Reminders:

• Check your spam folder for tracking emails

• Inspect packages before discarding outer boxes

• Save receipts for warranty purposes

About Us

Welcom to Topteng!

Topteng is a research and development, sales and service With a professional high tech enterprise based in Hongkong, and enjoying convenient transportation access. We specialized in developing and selling Auto Parts, such us car light,grille,Mirrors,Tire,Roof Rack,Car Hardtops, Roof Panels & Parts, etc. So that we can provide customers with various types of high-quality products. 

More than 10 years rich experience and have professional production line.So have many positive feedback on eBay!  

At the same time,we have many warehouses around the U.S, ensuring that your parcels in the fastest shipping. 

Our primary mission is your 100% satisfaction with our products & service! 

We look forward to your positive feedback on our shop!