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Eagle

Eagle BBM RB 4340 Forged Crank 4.375 Stroke

MPN: 444243757100 Catalog #: 001596669 Category: Crankshafts Check Vehicle Fitment

Product Details

Eagle forged 4340 steel Cranks feature a non-twist forging, .125 fillet radiuses for superior strength so chamfered / narrowed bearings required, nitrided surface and micropolished. Intended for the most demanding applications.

Eagle Chrysler BB 8 Bolt Rear Flange 4.375in Stroke 2.200in Rod Journal Forged 4340 Steel Crankshaft

Eagle BBM RB 4340 Forged Crank 4.375 Stroke, Eagle BBM RB 4340 Forged Crank 4.375 Stroke

Crankshaft - 4.375 in Stroke - Internal Balance - Forged Steel - 2-Piece Seal - Mopar RB-Series / 426 Hemi - 8-Bolt Flange - Each

2.200 Rod Journals 8 Bolt Flange

2.200 Rod Journals 8 Bolt Flange

Eagle BBM RB 4340 Forged Crank 4.375 Stroke, Eagle BBM RB 4340 Forged Crank 4.375 Stroke

Vehicle Fitment

Universal or product-specific fitment. Please review the product details and contact us if you need help confirming fitment before ordering.

Engine Compatibility

Mopar - BBMMatched variant: B/RB

Mopar B/RB Big Block; 383/400/413/426W/440

Mopar - Hemi Gen2Matched variant: 426 Hemi

1964–1971 426 Hemi; Race/Street Hemi

Nissan - RBMatched variant: RB

RB25/RB26 inline-6

Fitment note: Engine compatibility is provided as a guide. Please verify all fitment details before ordering.

Product Specs

Brand
Eagle
Part Number
444243757100
Catalog Number
001596669
Product Line
Crankshafts
Category
Engines & Parts
Type
Crankshafts
UPC / Barcode
793348019420
Vendor Product Category
Engine Components
Vendor Product Subcategory
Crankshafts
Length
32.25 in
Width
9.00 in
Height
8.75 in
Weight
75.03 lb
Units Per SKU
1
Freight / LTL
No
Ship Alone
Yes
Air Restricted
No
Prop 65
Y
CARB Approved
Yes
Clearance Item
No

Shipping & Availability

Current status 10 Available - Ready to ship
Estimated timing Usually ships within 24hrs

This item is showing available inventory. Most in-stock performance parts ship quickly, but timing can vary by warehouse, vendor cut-off time, holidays, and carrier pickup.

PROP 65 WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Inventory shown: 10 available as of 6/4/2026.

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