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Caterpillar C18 New Crankshaft, 189-4918

SKU: 5457N-SZ
tag Brand: Reliance Reliance brand replacement parts
sparkles Condition: New Aftermarket
shuffle Cross-References: 189-4918, 195-0314, 189-4917, 1894917, 1894918, 1950314, 312 003, 468-5119, 4685119, 5457N-SZ, H1894918
tractor Fits Equipment
Caterpillar 772 (RLB S/N Prefix) Caterpillar 772G (LTS S/N Prefix) Caterpillar 772G (RMH S/N Prefix) Caterpillar 772G (TWB S/N Prefix)
engine Fits Engines
Caterpillar C18 | BDN ESN Prefix Caterpillar C18 | C1J ESN Prefix Caterpillar C18 | CJP ESN Prefix
$8,99995
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The RF Engine Advantage
Family Operated Since 1975
Parts that meet or exceed OEM specifications. Guaranteed performance you can trust. Reliability built into every component.
A century of collective diesel knowledge and 10+ acres of engines and engine parts — we are more than just an online reseller or call center. We know heavy-duty diesel.
Same location and same phone number for the last 50 years. Same commitment to getting you the right parts at the right price.
RF Engine offers an expansive offering of new aftermarket, remanufactured, and used engines and engine parts all under one roof.

memo-circle-info Details

ruler-triangle Crankshaft Factory Specifications

  • Stroke: 7.205” (183.00mm)
  • Rod Ø: 3.5425-3.5441” (89.980-90.020mm)
  • Main Ø: 4.7492-4.7508” (120.63-120.67mm)
  • Neck: Centering Ring, 12-Bolt
  • Flange: Centering Ring, 12-Bolt, 1-Dowel
  • Weight: 447 lbs.

medal Our aftermarket replacement parts are built to OEM-equivalent standards. They have been produced to meet or exceed original equipment specifications for material quality, dimensional tolerance, and field durability — the same rigors the factory part is designed to handle. The result is a component that installs like factory, performs like factory, and delivers long service life without the dealer price tag.

tractor Fitment Guide

truck Articulated Trucks (4)
Caterpillar 772 (RLB S/N Prefix)
Caterpillar 772G (LTS S/N Prefix)
Caterpillar 772G (RMH S/N Prefix)
Caterpillar 772G (TWB S/N Prefix)
road Cold Planers (2)
Caterpillar PM200 (P1C S/N Prefix)
Caterpillar PM201 (PNM S/N Prefix)
excavator Hydraulic Excavators (10)
Caterpillar 385C (EAM S/N Prefix)
Caterpillar 385C (EDA S/N Prefix)
Caterpillar 385C (GLT S/N Prefix)
Caterpillar 385C (KGB S/N Prefix)
Caterpillar 385C (KKK S/N Prefix)
Caterpillar 385C (MMA S/N Prefix)
Caterpillar 385C (MNZ S/N Prefix)
Caterpillar 385C (T2E S/N Prefix)
Caterpillar 385C (T2F S/N Prefix)
Caterpillar 385C (WAW S/N Prefix)
road Motor Scrapers (5)
Caterpillar 631G (DFA S/N Prefix)
Caterpillar 637G (DFJ S/N Prefix)
Caterpillar 657G (A4G S/N Prefix)
Caterpillar 657G (W1B S/N Prefix)
Caterpillar 657G (W1C S/N Prefix)
bulldozer Track-Type Tractor/Dozers (1)
Caterpillar D9T (TWG S/N Prefix)
engine Engines (46)
Caterpillar C18 | BDN ESN Prefix 6-cyl • Diesel
Caterpillar C18 | C1J ESN Prefix 6-cyl • Diesel
Caterpillar C18 | CJP ESN Prefix 6-cyl • Diesel
Caterpillar C18 | CKH ESN Prefix 6-cyl • Diesel
Caterpillar C18 | CYN ESN Prefix 6-cyl • Diesel
Caterpillar C18 | DDS ESN Prefix 6-cyl • Diesel
Caterpillar C18 | DSE ESN Prefix 6-cyl • Diesel
Caterpillar C18 | EFE ESN Prefix 6-cyl • Diesel
Caterpillar C18 | EGE ESN Prefix 6-cyl • Diesel
Caterpillar C18 | EJG ESN Prefix 6-cyl • Diesel
Caterpillar C18 | ELL ESN Prefix 6-cyl • Diesel
Caterpillar C18 | ELM ESN Prefix 6-cyl • Diesel
Caterpillar C18 | EST ESN Prefix 6-cyl • Diesel
Caterpillar C18 | GEX ESN Prefix 6-cyl • Diesel
Caterpillar C18 | GJE ESN Prefix 6-cyl • Diesel
Caterpillar C18 | GPT ESN Prefix 6-cyl • Diesel
Caterpillar C18 | GTB ESN Prefix 6-cyl • Diesel
Caterpillar C18 | KJT ESN Prefix 6-cyl • Diesel
Caterpillar C18 | LTS ESN Prefix 6-cyl • Diesel
Caterpillar C18 | MDP ESN Prefix 6-cyl • Diesel
Caterpillar C18 | MEP ESN Prefix 6-cyl • Diesel
Caterpillar C18 | MGS ESN Prefix 6-cyl • Diesel
Caterpillar C18 | NAY ESN Prefix 6-cyl • Diesel
Caterpillar C18 | NBB ESN Prefix 6-cyl • Diesel
Caterpillar C18 | P1C ESN Prefix 6-cyl • Diesel
Caterpillar C18 | P1N ESN Prefix 6-cyl • Diesel
Caterpillar C18 | PDH ESN Prefix 6-cyl • Diesel
Caterpillar C18 | PLE ESN Prefix 6-cyl • Diesel
Caterpillar C18 | R4L ESN Prefix 6-cyl • Diesel
Caterpillar C18 | RHX ESN Prefix 6-cyl • Diesel
Caterpillar C18 | RMH ESN Prefix 6-cyl • Diesel
Caterpillar C18 | STH ESN Prefix 6-cyl • Diesel
Caterpillar C18 | T2P ESN Prefix 6-cyl • Diesel
Caterpillar C18 | T2R ESN Prefix 6-cyl • Diesel
Caterpillar C18 | TNA ESN Prefix 6-cyl • Diesel
Caterpillar C18 | TWB ESN Prefix 6-cyl • Diesel
Caterpillar C18 | TWG ESN Prefix 6-cyl • Diesel
Caterpillar C18 | TXW ESN Prefix 6-cyl • Diesel
Caterpillar C18 | WJB ESN Prefix 6-cyl • Diesel
Caterpillar C18 | WJH ESN Prefix 6-cyl • Diesel
Caterpillar C18 | WJW ESN Prefix 6-cyl • Diesel
Caterpillar C18 | WJY ESN Prefix 6-cyl • Diesel
Caterpillar C18 | WKB ESN Prefix 6-cyl • Diesel
Caterpillar C18 | WRH ESN Prefix 6-cyl • Diesel
Caterpillar C18 | X6W ESN Prefix 6-cyl • Diesel
Caterpillar C18 | X7W ESN Prefix 6-cyl • Diesel
exclamation While every effort has been made to ensure the accuracy of the fitment information listed above, it is ultimately the responsibility of the installing mechanic to perform a side-by-side comparison of the replacement part with the original to verify proper fit before installation. RF Engine is not liable for labor or consequential damages resulting from incorrect application.

shield-check Warranty Information

Overview

We stand behind every part we sell — new, rebuilt, or used. While RF Engine is not the manufacturer of any product we sell, we are committed to ensuring that each part is accurately represented, inspected where applicable, and delivered in the condition described at the time of sale.


New Parts

All new parts are warranted by the original manufacturer only and are subject to that manufacturer's specific terms and conditions. RF Engine and its subsidiaries do not offer any additional warranty or guarantee of any type, express or implied, on new products. Due to the vast number of manufacturers we work with, no specific warranty details can be outlined here. Please contact us for warranty information pertaining to your specific product.


Rebuilt, Remanufactured & Reconditioned Parts

Rebuilt, remanufactured, and reconditioned parts are used components that have been machined, reassembled, or otherwise restored toward original specifications by a third-party machine shop — not by RF Engine. These parts carry an inspection-only warranty unless otherwise expressly stated in writing by RF Engine at the time of sale. All products must be inspected before installation. By installing the product, the customer is expressly accepting, completely and without reserve, the product and all liability from the point of receipt forward.


Used Parts

Used parts are sold strictly on a representation basis. RF Engine attests that used parts are accurately described and within usable, serviceable condition at the time of sale. No warranty of performance, longevity, or fitness for a particular use is expressed or implied. Used parts are not refurbished, remanufactured, or restored to like-new condition and may exhibit signs of wear, surface rust, blemishes, old gaskets, residue, or other cosmetic imperfections. Further cleaning or machining prior to installation may be required.

No original equipment manufacturer warranties used parts to secondary purchasers, and RF Engine does not extend any warranty beyond accurate representation of condition.


First-Party Purchaser Only

All warranties, representations, and assurances of quality or fitment extended by RF Engine apply exclusively to the original, direct purchaser. These do not transfer to any third party, whether through resale, gifting, or use of the part in a third-party repair or service. RF Engine assumes no obligation or liability to anyone other than the original buyer.


Claims

All claims must be submitted to RF Engine in writing, immediately following any issue and before performing any disassembly or repairs of any type. Unauthorized disassembly, repair, or a delay in claim notification will void any applicable warranty. RF Engine reserves the right to inspect all products involved in any warranty claim. All products being returned for inspection must be sent freight pre-paid.

At no time will any reimbursement exceed the original purchase price of the product in question. Freight charges incurred by the customer will not be refunded under any circumstances. Where a manufacturer's warranty applies, RF Engine will assist the buyer through the claim process; however, the final determination of any warranty claim is made by the manufacturer, not by RF Engine.


Limitation of Liability

RF Engine and its subsidiaries offer no warranty of any kind, either express or implied, with regard to the merchantability or fitness for a particular use of any product sold. RF Engine acts only as a broker with regard to any machine work or outside labor. Any warranty or claim against machine work or outside labor is to be taken up directly with the individual or organization that performed the work.

In no event shall RF Engine be liable for any incidental, consequential, or special damages, including but not limited to engine damage, equipment downtime, labor costs, lost revenue, or any other costs arising from the use or inability to use any product sold by RF Engine, regardless of whether RF Engine has been advised of the possibility of such damages.


Installation & Responsibility

We strongly recommend that all parts be inspected prior to installation and that installation be performed by a qualified heavy-duty diesel mechanic. By installing any product purchased from RF Engine, the customer expressly accepts the product and assumes all liability from the point of installation forward.


Questions?

If you have questions about a part's condition, warranty coverage, or our claims process, feel free to contact us. We're here to help.


Last Updated: June 22, 2025

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Fitment results are based on our application database. Always verify by side-by-side comparison before installation. Questions? Call 800-828-6943.

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