Diesel Engine Parts
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This premium 84mm STD (Standard Size) Piston Ring Set is a direct replacement for the Perkins 400 Series diesel engines. Engineered for high durability and oil control, this set is an essential component for engine overhauls on Perkins 402D, 403D-15, and 404D-22 models. Sourced from a Tier-1 manufacturer, this ring set ensures compatibility with original equipment specifications. It is widely used in industrial applications including Genie lifts, Cat loaders, tractors, and other construction machinery. Our global supply chain guarantees fast shipping to major industrial hubs in North America, Europe, Asia-Pacific, and the Middle East.
| Specification | Detail |
|---|---|
| Part Number | 115107970, 115107860 |
| Engine Series | Perkins 400 Series |
| Engine Models | 402D, 403D-15, 404D-22 |
| Cylinder Diameter (Bore) | 84mm (Standard/STD) |
| Ring Type | Piston Ring Set (Compression & Oil Control) |
| Material | Ductile Iron / Alloy Steel (Typical) |
| Surface Treatment | Chrome / Moly Coating (Dependent on ring position) |
| Quantity per Set | 3 Rings per Cylinder (1 Top, 1 Second, 1 Oil) |
| Condition | Brand New, Aftermarket OEM Replacement |
This piston ring set directly replaces the following OEM part numbers:
Note: Always confirm your engine’s specific ring pack requirement (e.g., Keystone or Rectangular) before ordering.
This product is specifically designed for the following applications:
We maintain a robust global inventory to ensure rapid fulfillment for our B2B clients. Our logistics network supports:
Q1: How do I verify these rings fit my Perkins 404D-22 engine?
A1: Verify your engine’s serial number and cylinder bore size. This set is specifically for an 84mm STD (Standard) bore. If your block has been rebored, you will require an oversize (e.g., 0.50mm or 1.00mm) ring set. Also, confirm if your engine uses a “Keystone” (tapered) top ring or a “Rectangular” ring; this set typically covers the common rectangular profile.
Q2: What is the correct installation procedure for these rings?
A2: Installation requires a piston ring compressor. Ensure rings are installed with the correct orientation (top side up) and that ring gaps are staggered at 120 degrees around the piston. Always lubricate the rings and cylinder bore with clean engine oil before assembly. Refer to the Perkins service manual for specific torque and gap specifications.
Q3: Can I use this ring set in a high-hour engine without replacing the cylinder liner?
A3: It is highly recommended to measure the cylinder bore for taper and out-of-roundness before installation. If the bore wear exceeds the manufacturer’s service limit (typically 0.005-0.010 inches), the new rings may not seat properly, leading to high oil consumption. For best results, install new rings in conjunction with a new or reconditioned cylinder liner and new piston.
1.An authorized wholesaler of Isuzu genuine parts, Hino genuine parts, Mitsubishi genuine parts and Mahle parts.
2. We are not only supply genuine parts, but also high quality OEM parts, which are made in China or made in Japan.
3. More than 10 years of experience in machinery parts, professional supply of diesel engine parts.
4. Fast delivery, the fastest can be shipped in one day ,more than 500,000 of different types parts in stock.
5. Scientific ERP system, easy and fast to locate the parts that customer needs.
6. Professional technician checks the parts before delivery, to make sure the parts are correct, usable and defect-free.
1. Our shipment is by air/sea/express (DHL/FEDEX/TNT/UPS/EMS).
2. Once we get confirmation of payment, we will ship products in 2 days.
3. Our packaging is standard export wooden box or others as your requirement.
4. We’ll check and test the products before shipping , and givethe pictures to our customers to confirm.
A: Our main products are Liner kit, Piston, Rings, Liner, Gasket kit, Bearing, Injection pump, Nozzle, Water pump, Oil pump,Crankshaft, Turbocharger,Filter, etc.
A: Normally we can supply any quantity if we have in stock.
A: We accept Western Union, T/T, Paypal.
A: Carton or wooden case , If you want to put your logo on the packing , We will do it after get your authorization letter.
A: By Express ,usually might take 3-4 days ;By Air , Usually take 7-9 days ; By Sea ,usually take 1-2 months .
A: In the beginning , We will communicate with clients in details to understand what they need .
Before packing , We will check the products and send photos to clients .After confirmation ,
We will packing products well to avoid damage . Once we get tracking number ,
We will send it to customer and keep contact in with clients .
