Home / Shop / King XP-Series Main Bearings MB5505XP 001 Bearings, XP-Series, Copper/Lead/Nickel, 0.001 in. Crankshaft Undersize, Ford, Lincoln, Mercury, 351W, 351M, 400

King XP-Series Main Bearings MB5505XP 001 Bearings, XP-Series, Copper/Lead/Nickel, 0.001 in. Crankshaft Undersize, Ford, Lincoln, Mercury, 351W, 351M, 400

SKU: KINGMB5505XP_001

Main Bearings

King Engine Bearings

King XP-Series Main Bearings MB5505XP 001 Bearings, XP-Series, Copper/Lead/Nickel, 0.001 in. Crankshaft Undersize, Ford, Lincoln, Mercury, 351W, 351M, 400

SKU: KINGMB5505XP_001

Main Bearings

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Description

Built with enhanced tri-metal, King XP-Series main bearings have a layered copper lead construction, with a nickel plate barrier and lead/tin/copper Babbitt overlay over a steel backing--in an adhesion process that provides superior stability and durability. King's advanced control measures hit a bull's-eye, maintaining wall thickness tolerances far tighter than their competitors: an amazing +/- .0001 in. The XP-Series main bearings are narrowed for large radii crankshafts and feature enlarged, chamfered oil holes with full, 3/4 in., or 1/2 in. grooving for improved oiling. They deliver consistent and reliable performance with a high-load capacity. These race-only Xtreme Performance (XP-Series) Tri-Lecular main bearings are proven track-tough to handle the ground-shaking power of your race engine. Hundreds of sets are available; order the bearings recommended for your vehicle.

Part Type

Main Bearings

Data: v4.2 - Upd: 2026-10-14 10:41:42

Specifications

Product Attributes - Brand: King Engine Bearings
Product Attributes - Manufacturer's Part Number: MB5505XP 001
Product Attributes - Part Type: Main Bearings
Product Attributes - Product Line: King XP-Series Main Bearings
Product Attributes - UPC: 611500532085
Product Attributes - Bearing Usage: Performance
Product Attributes - Engine Crankshaft Undersize (in.): 0.001 in.
Product Attributes - Engine Crankshaft Undersize (mm): 0.025mm
Product Attributes - Grooved Bearing: Yes
Product Attributes - Groove Location: Upper
Product Attributes - Groove Style: 1/2
Product Attributes - Thrust Bearing Oversize: Stock
Product Attributes - Bearing Material: Tri-metal copper-lead nickel
Product Attributes - Quantity: Sold as a set of 5.

Reference Information

Brand Name/s	King Engine Bearings
StreetFX SKU	kingMB5505XP_001
SFX Item ID	4859858
Supplier Item Code	4859858
Manufacturer SKU	MB5505XP 001
Manufacturer UPC	611500568763
Alternative References	KGB-MB5505XP001, MB5505XP, 351W, 351M

Compatibility

Application Data

Make	MERCURY
Model	GRAND MARQUIS
Submodel	LS
Beginning Year	1986
Ending Year	1986
Engine Type	V8
Liter	6.6
CID	400
CC	5753
Engine Family	FORD MODIFIED V8 GAS
Engine Size	6.6L/400
Application Notes	Cylinder Head Type: OHV, Engine Version: Windsor. Optional MB5505SI Race Bearings Race bearings, Trimetal [pMax Black] Crankshaft Undersize-001in Flange STD
Engine VIN Code	S

Make	MERCURY
Beginning Year	1971
Ending Year	1973
Engine Type	V8
Engine Family	Ford small block Windsor
Engine Size	6.6L/400
Model	MARQUIS
Submodel	TOWN LANDAU
Liter	6.6
CID	400
CC	5753
Application Notes	Cylinder Head Type: OHV, Engine Version: Windsor. Optional MB5505SI Race Bearings Race bearings, Trimetal [pMax Black] Crankshaft Undersize-001in Flange STD
Engine VIN Code	C

Make	MERCURY
Beginning Year	1971
Ending Year	1971
Engine Type	V8
Engine Family	Ford small block Windsor
Engine Size	5.8L/351
Model	MARQUIS
Submodel	500
Liter	6.6
CID	400
CC	5753
Application Notes	Cylinder Head Type: OHV, Engine Version: Windsor. Optional MB5505SI Race Bearings Race bearings, Trimetal [pMax Black] Crankshaft Undersize-001in Flange STD
Engine VIN Code	S

Make	MERCURY
Beginning Year	1976
Ending Year	1978
Engine Type	V8
Engine Family	FORD MODIFIED V8 GAS
Engine Size	6.6L/400
Model	MARQUIS
Submodel	COUNTRY SQUIRE
Liter	6.6
CID	400
CC	5753
Application Notes	Engine Version: Windsor. Optional MB5505SI Race Bearings Race bearings, Trimetal [pMax Black] Crankshaft Undersize-001in Flange STD
Engine VIN Code	Z

Make	MERCURY
Model	MARQUIS
Submodel	BROUGHAM
Beginning Year	1979
Ending Year	1977
Engine Type	V8
Liter	6.6
CID	400
CC	5753
Engine Family	FORD MODIFIED V8 GAS
Engine Size	6.6L/400
Application Notes	Optional MB5505SI Race Bearings Race bearings, Trimetal [pMax Black] Crankshaft Undersize-001in Flange STD
Engine VIN Code	S

Make	MERCURY
Model	MARQUIS
Submodel	COUNTRY SQUIRE LX
Beginning Year	1975
Ending Year	1980
Engine Type	V8
Liter	5.8
CID	351
Engine Family	Ford small block Windsor
Engine Size	5.8L/351
Application Notes	Engine Version: Windsor. Optional MB5505SI Race Bearings Race bearings, Trimetal [pMax Black] Crankshaft Undersize-001in Flange STD
Engine VIN Code	Z
CC	5753

Make	MERCURY
Model	MARQUIS
Submodel	VILLAGER
Beginning Year	1981
Ending Year	1981
Engine Type	V8
Liter	6.6
CID	400
CC	5753
Engine Family	Ford small block Windsor
Engine Size	6.6L/400
Application Notes	Cylinder Head Type: OHV, Engine Version: Windsor. Optional MB5505SI Race Bearings Race bearings, Trimetal [pMax Black] Crankshaft Undersize-001in Flange STD
Engine VIN Code	S

Make	MERCURY
Model	MARQUIS
Submodel	VILLAGER
Beginning Year	1971
Ending Year	1973
Engine Type	V8
Liter	6.6
CID	400
CC	5753
Engine Family	FORD MODIFIED V8 GAS
Engine Size	6.6L/400
Application Notes	Cylinder Head Type: OHV, Engine Version: Windsor. Optional MB5505SI Race Bearings Race bearings, Trimetal [pMax Black] Crankshaft Undersize-001in Flange STD
Engine VIN Code	H

Make	MERCURY
Model	MARQUIS
Submodel	BROUGHAM
Beginning Year	1969
Ending Year	1971
Engine Type	V8
Liter	6.6
CID	400
CC	5753
Engine Family	FORD MODIFIED V8 GAS
Engine Size	6.6L/400
Application Notes	Cylinder Head Type: OHV, Engine Version: Windsor. Optional MB5505SI Race Bearings Race bearings, Trimetal [pMax Black] Crankshaft Undersize-001in Flange STD
Engine VIN Code	G

Make	MERCURY
Model	MARQUIS
Submodel	BROUGHAM
Beginning Year	1978
Ending Year	1986
Engine Type	V8
Liter	6.6
CID	400
CC	5753
Engine Family	FORD MODIFIED V8 GAS
Engine Size	6.6L/400
Application Notes	Engine Version: Windsor. Optional MB5505SI Race Bearings Race bearings, Trimetal [pMax Black] Crankshaft Undersize-001in Flange STD
Engine VIN Code	Z

Make	MERCURY
Model	MARQUIS
Submodel	BROUGHAM
Beginning Year	1979
Ending Year	1975
Engine Type	V8
Liter	6.6
CID	400
CC	5753
Engine Family	FORD MODIFIED V8 GAS
Engine Size	6.6L/400
Application Notes	Engine Version: Windsor. Optional MB5505SI Race Bearings Race bearings, Trimetal [pMax Black] Crankshaft Undersize-001in Flange STD
Engine VIN Code	S

Make	MERCURY
Model	MARQUIS
Submodel	BROUGHAM
Beginning Year	1969
Ending Year	1971
Engine Type	V8
Liter	6.6
CID	400
CC	5753
Engine Family	FORD MODIFIED V8 GAS
Engine Size	6.6L/400
Application Notes	Cylinder Head Type: OHV, Engine Version: Windsor. Optional MB5505SI Race Bearings Race bearings, Trimetal [pMax Black] Crankshaft Undersize-001in Flange STD
Engine VIN Code	S

Make	MERCURY
Model	MARQUIS
Submodel	CJ
Beginning Year	1981
Ending Year	1981
Engine Type	V8
Liter	5.8
CID	351
Engine Family	Ford Modified
Engine Size	5.8L/351
Application Notes	Cylinder Head Type: OHV, Engine Version: Windsor. Optional MB5505SI Race Bearings Race bearings, Trimetal [pMax Black] Crankshaft Undersize-001in Flange STD
Engine VIN Code	H
CC	5753

Make	MERCURY
Model	MARQUIS
Submodel	COLONY PARK
Beginning Year	1970
Ending Year	1976
Engine Type	V8
Liter	6.6
CID	400
CC	5753
Engine Family	FORD MODIFIED V8 GAS
Engine Size	6.6L/400
Application Notes	Cylinder Head Type: OHV, Engine Version: Windsor. Optional MB5505SI Race Bearings Race bearings, Trimetal [pMax Black] Crankshaft Undersize-001in Flange STD
Engine VIN Code	Z

Make	MERCURY
Model	MONARCH
Submodel	SPOILER
Beginning Year	1969
Ending Year	1971
Engine Type	V8
Liter	5.8
CID	351
Engine Family	Ford small block Windsor
Engine Size	5.8L/351
Application Notes	Engine Version: Windsor. Optional MB5505SI Race Bearings Race bearings, Trimetal [pMax Black] Crankshaft Undersize-001in Flange STD
Engine VIN Code	G
CC	5753

Make	MERCURY
Model	MONARCH
Submodel	GHIA
Beginning Year	1970
Ending Year	1977
Engine Type	V8
Liter	6.6
CID	400
CC	5753
Engine Family	Ford Modified
Engine Size	6.6L/400
Application Notes	Cylinder Head Type: OHV, Engine Version: Windsor. Optional MB5505SI Race Bearings Race bearings, Trimetal [pMax Black] Crankshaft Undersize-001in Flange STD
Engine VIN Code	S

Make	MERCURY
Model	MONARCH
Submodel	GRAND GHIA
Beginning Year	1976
Ending Year	1980
Engine Type	V8
Liter	6.6
CID	400
CC	5753
Engine Family	FORD MODIFIED V8 GAS
Engine Size	6.6L/400
Application Notes	Engine Version: Windsor. Optional MB5505SI Race Bearings Race bearings, Trimetal [pMax Black] Crankshaft Undersize-001in Flange STD
Engine VIN Code	S

Make	MERCURY
Model	MONTEGO
Submodel	SQUIRE
Beginning Year	1979
Ending Year	1977
Engine Type	V8
Liter	6.6
CID	400
CC	5753
Engine Family	FORD MODIFIED V8 GAS
Engine Size	6.6L/400
Application Notes	Cylinder Head Type: OHV, Engine Version: Windsor. Optional MB5505SI Race Bearings Race bearings, Trimetal [pMax Black] Crankshaft Undersize-001in Flange STD
Engine VIN Code	S

Make	MERCURY
Model	MONTEGO
Submodel	SQUIRE
Beginning Year	1980
Ending Year	1980
Engine Type	V8
Liter	6.6
CID	400
CC	5753
Engine Family	Ford small block Windsor
Engine Size	6.6L/400
Application Notes	Engine Version: Windsor. Optional MB5505SI Race Bearings Race bearings, Trimetal [pMax Black] Crankshaft Undersize-001in Flange STD
Engine VIN Code	Z

Make	MERCURY
Model	MONTEGO
Submodel	POLICE CRUISER
Beginning Year	1981
Ending Year	1976
Engine Type	V8
Liter	6.6
CID	400
CC	5753
Engine Family	FORD MODIFIED V8 GAS
Engine Size	6.6L/400
Application Notes	Cylinder Head Type: OHV, Engine Version: Windsor. Optional MB5505SI Race Bearings Race bearings, Trimetal [pMax Black] Crankshaft Undersize-001in Flange STD
Engine VIN Code	S

Make	MERCURY
Model	MONTEGO
Submodel	BROUGHAM
Beginning Year	1986
Ending Year	1975
Engine Type	V8
Liter	6.6
CID	400
CC	5753
Engine Family	FORD MODIFIED V8 GAS
Engine Size	6.6L/400
Application Notes	Cylinder Head Type: OHV, Engine Version: Windsor. Optional MB5505SI Race Bearings Race bearings, Trimetal [pMax Black] Crankshaft Undersize-001in Flange STD
Engine VIN Code	S

Make	MERCURY
Model	MONTEGO
Submodel	BROUGHAM
Beginning Year	1979
Ending Year	1975
Engine Type	V8
Liter	6.6
CID	400
CC	5753
Engine Family	FORD MODIFIED V8 GAS
Engine Size	6.6L/400
Application Notes	Engine Version: Windsor. Optional MB5505SI Race Bearings Race bearings, Trimetal [pMax Black] Crankshaft Undersize-001in Flange STD
Engine VIN Code	S

Make	MERCURY
Model	MONTEGO
Submodel	GT
Beginning Year	1972
Ending Year	1973
Engine Type	V8
Liter	6.6
CID	400
CC	5753
Engine Family	FORD MODIFIED V8 GAS
Engine Size	6.6L/400
Application Notes	Engine Version: Windsor. Optional MB5505SI Race Bearings Race bearings, Trimetal [pMax Black] Crankshaft Undersize-001in Flange STD
Engine VIN Code	Z

Make	MERCURY
Model	MONTEGO
Submodel	MX
Beginning Year	1981
Ending Year	1973
Engine Type	V8
Liter	6.6
CID	400
CC	5753
Engine Family	Ford small block Windsor
Engine Size	6.6L/400
Application Notes	Cylinder Head Type: OHV, Engine Version: Windsor. Optional MB5505SI Race Bearings Race bearings, Trimetal [pMax Black] Crankshaft Undersize-001in Flange STD
Engine VIN Code	S

Make	MERCURY
Model	MONTEGO
Submodel	MX
Beginning Year	1986
Ending Year	1974
Engine Type	V8
Liter	6.6
CID	400
CC	5753
Engine Family	FORD MODIFIED V8 GAS
Engine Size	6.6L/400
Application Notes	Cylinder Head Type: OHV, Engine Version: Windsor. Optional MB5505SI Race Bearings Race bearings, Trimetal [pMax Black] Crankshaft Undersize-001in Flange STD
Engine VIN Code	S

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King XP-Series Main Bearings MB5505XP 001 Bearings, XP-Series, Copper/Lead/Nickel, 0.001 in. Crankshaft Undersize, Ford, Lincoln, Mercury, 351W, 351M, 400

King XP-Series Main Bearings MB5505XP 001 Bearings, XP-Series, Copper/Lead/Nickel, 0.001 in. Crankshaft Undersize, Ford, Lincoln, Mercury, 351W, 351M, 400

Description

Part Type

Specifications

Reference Information

Compatibility

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