A51916 - OEM O-Ring - Case Construction
A51916 - OEM O-Ring - Case Construction
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Case Construction OEM Part No. A51916

O-Ring

Case Construction

$8.85 Available
14 verified fitments
Select your machine to check fit
Not sure it’s the right part? Talk to a parts specialist (740) 432-6303Mon–Fri 7:30 AM–5 PM EST
Ships nationwideUPS, USPS & freight
30-day returnsNew, unused parts
OEM guaranteedDirect from manufacturer
Machine Model Years / S/N
4 CYLINDER DIESEL ENGINE 207 1975 – 1980
DIESEL ENGINE SUPPLEMENT 207 1975 – 1980
CASE CRAWLER TRACTOR (S/N 3060306 & AFTER) 450 1975 – 1980
CASE CRAWLER TRACTOR 450B 1978 – 1983
CASE CRAWLER TRACTOR 455B 1983
CASE CONSTRUCTION KING TRACTOR W/SHUTTLE TRANSMISSION 580B 1971 – 1977
CASE CONSTRUCTION KING LOADER BACKHOE 580C 1975 – 1980
CASE CONSTRUCTION KING LOADER BACKHOE 580D 1980 – 1984
CASE SUPER-D CONSTRUCTION KING LOADER BACKHOE 580SD 1980 – 1984
CASE CONSTRUCTION KING FORKLIFT 584C 1979 – 1988
Product Overview

The A51916 o-ring helps seal mating surfaces to prevent leakage under pressure, supporting dependable operation in Case equipment. This part maintains alignment and reduces the need for frequent service.

Key Features
  • Part Number: A51916
  • Diagram Reference Number: 2
  • Package Quantity: 1
Product Specifications
  • Package Weight: 0.013 lbs
  • Package Length: 4.488 in
  • Package Width: 3.74 in
  • Package Height: 0.394 in
  • Related Parts: IC:A50975, IC:A44083

Compatible equipment

This part fits 4 CYLINDER DIESEL ENGINE, DIESEL ENGINE SUPPLEMENT, CASE CRAWLER TRACTOR (S/N 3060306 & AFTER), CASE CRAWLER TRACTOR, CASE CONSTRUCTION KING TRACTOR W/SHUTTLE TRANSMISSION, CASE CONSTRUCTION KING LOADER BACKHOE, CASE SUPER-D CONSTRUCTION KING LOADER BACKHOE, CASE CONSTRUCTION KING FORKLIFT, TRENCHER - CASE 207 DIESEL ENGINE, CASE UNIT LOADER including models 207, 450, 450B, 455B, 580B, 580C, 580D, 580SD, 584C, 585C, 586C, DH5, W11.

Frequently asked questions

What is the part number?

The manufacturer part number is A51916.

Is this a genuine OEM part?

Yes. Southeastern Equipment stocks OEM and quality aftermarket parts for heavy equipment. Contact us if you need a specific OEM source or aftermarket option.

Will this fit my machine?

See the compatible equipment list above. If your model is not listed, call us with your machine's serial number and we can confirm.

Where does this ship from?

Southeastern Equipment Company ships parts nationwide from our US warehouse. Orders placed before 2 PM ET typically ship same day.

WARNING:For California residents — Cancer and Reproductive Harm. www.P65Warnings.ca.gov

Manufacturer part number
A51916
Brand
Case Construction
Condition
OEM, new
Category
Case Construction
Weight
0.01 lb

Ships nationwide. In-stock parts ordered before 2:30 PM ET ship the same business day. Your exact shipping cost and delivery estimate are calculated at checkout from your ZIP code and the part’s size and weight; oversized and truck-freight items may need extra transit time and freight charges.

Free branch pickup is also available across Ohio, Indiana, Michigan, and Kentucky — just choose it at checkout.

30-day returns. New, unused parts in original packaging may be returned within 30 days. Some items — including electrical, special-order, and direct-from-supplier parts — are non-returnable. See our full return policy.

$8.85

This part appears in these diagrams

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