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Sealed Power E459X40 Cast Piston Ring Set 4.040 in. Bore 6-Cylinder 0.040 Oversize

(GMC G2500 1985-95, Sonoma 1991-95, K1500 1985-86, 1988-95, C1500 1985-86, 1988-95, K2500 1985, 1988-95, Jimmy 1992-94, Safari 1985-94 + 36 more models)

Manufacturer

Picture for manufacturer Sealed Power

Part Number

E459X40
7 reviews
Sale Price

$67.50

In Stock (10+)

delivery box

Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The Sealed Power E459X40 is a cast iron piston ring set designed as a direct-fit, oversize replacement for 6-cylinder engines. This set is ground to a 4.040 in. bore diameter — a 0.040 in. oversize — making it purpose-built for engines that have been bored out during a rebuild. The set includes top, second, and oil control rings sized to restore proper compression sealing and oil management to worn or rebuilt engines.

Ring Specifications:

  • Ring Type: Cast Iron
  • Bore Diameter: 4.040 in. (0.040 in. Oversize)
  • Top Ring Width: 5/64 in. (0.0781 in.) — Reverse Torsional Face Design
  • 2nd Ring Width: 5/64 in. (0.0781 in.) — Reverse Torsional Face Design
  • Oil Ring Width: 3/16 in. (0.1875 in.) — 3-Piece Flex Vent Design
  • Oil Ring Groove Depth: 0.190 in. Deep Groove
  • File Fit: No — ready to install at standard end gaps

Key Features:

  • Meets or exceeds OEM specifications for proper sealing and performance
  • Cast iron construction offers excellent resistance to scuffing and wear
  • Exacting tolerances for consistent fit across all six cylinders
  • 3-piece flex vent oil ring design provides reliable oil control and drainage
  • Reverse torsional top and second ring face design promotes rapid seating
  • Manufactured under ISO and QS certified processes for consistent quality

OEM & Cross-Reference Part Numbers:

  • General Motors: 12507985, 14089025
  • Clevite: 459X, 51684CP
  • Hastings Piston Rings: 5712
  • Hi-Tech Engine Components: 5712
  • Dana Commercial Vehicle Service Parts: 51475

Sealed Power is a trusted name in professional engine rebuilding, backed by decades of engineering expertise and rigorous manufacturing standards. The E459X40 piston ring set is a reliable choice for engine builders seeking OE-quality components that deliver long-lasting compression sealing and oil control in rebuilt 6-cylinder engines.

Products specifications

Fits

GMC G2500 1985-95, Sonoma 1991-95, K1500 1985-86, 1988-95, C1500 1985-86, 1988-95, K2500 1985, 1988-95, Jimmy 1992-94, Safari 1985-94, C2500 1985-86, 1988-95, S15 1988-90, S15 Jimmy 1988-91, P3500 1990-95, G3500 1985-95 + 31 more models

Agricultural Equipment

N

Application Specific

Y

Car Light Truck

Y

Engine Specific

Y

Freight Class

55

Heavy Duty Truck

N

High Performance

N

Industrial Off Highway Equipment

N

Marine

N

Medium Duty Truck

N

Motorcycle ATV

N

Non Vehicle Specific

N

Oversize Inch

.035

Personal WaterCraft

N

Small Engine

N

SnowMobile

N

Transmission Specific

N

What is in the box

High quality cast ring set

Feature 2

Uses leading edge materials

2nd Ring Material

Grey Iron

Oversize (in)

0.040

Top Ring Face Design

Reverse Torsional

Oil Ring Design

3 Piece Flex Vent

File Fit

No

Outside Diameter (in)

4.0400

Top Ring Width (in)

5/64

Bore Size (in)

4.0000

Oil Ring Design

SS50U

Cylinder Quantity

6

Oversized Amount

0.040

Ring Set Groove Widths (in)

5/64 x 5/64 x 3/16

2nd Ring Width (in)

5/64

Oil Ring Width (in)

3/16

Outside Diameter

4.0400

Top Ring Material

Grey Iron

File Fit (Y/N)

N

Bore Diameter

4.0000

2nd Ring Face Design

Reverse Torsional

Thank you foryou fast service, and knowledge. I will definitely be shopping again for my automotive supply needs.

super service and best price on the net

The product was great and delivery was fast. Autoplicity made the trans action very easy. The payment process was very secure and safy also. I will be ordering again from the company in the furture.<br><br>Tj Vandermarlierre

Ordering online from Autoplicity was quick and easy.<br>The item shipped quick and arrive a few days later via std ground shipping.<br>The quality and fit of the product (SUV cargo liner) was great, and it made a wonderful Christmas gift!<br>I will purchase from you again, thank you!

Easy to order

Excellent service. I called in Monday for a hard to find item which I had ordered from several other online shops who despite saying were In Stock online were not actually in stock at all and the orders were canceled after waiting a week to find out. They had the item in stock as listed on their website and shipped the next day. The price was the cheapest of anyone who actually had the item in stock by a substantial amount.

Thanks for the great service, best prices, and fast shipping!!!

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