VW / Audi 1.8T 20V

ARP is a manufacturer of fasteners/bolts found in engines and drivelines, ranging from OEM replacement parts to specialty hardware for racing applications. ARP is the world leader in fastener technology.

ARP is a manufacturer of fasteners/bolts found in engines and drivelines, ranging from OEM replacement parts to specialty hardware for racing applications. ARP is the world leader in fastener technology.

ENGINE BEARINGS
	MAIN BEARING SET
	Part#
	5M1644H	5M1644HX
Sizes	STD, .25, .50	STD
Oil Clearance	Standard	+ 0.001" Extra
Half Type	Upper & Lower
Material	Tri-metal
Min Std Shaft Size	2.1243in / 53.958mm
Max Std Shaft Size	2.1251in / 53.978mm
Min Std Tunnel Size	2.3228in / 59.000mm
Max Std Tunnel Size	2.3236in / 59.019mm
Max Wall at Crown	0.0985in / 2.502mm	0.0980in / 2.489mm
Max Overall Length	0.728in / 18.49mm
Notes	Set contain 6 x 1648H and 4 x 1644H shells. Use 1648H shell in #4 position as upper and lower.
Diagram        (Top View)

Engines VAG group 4 cylinder engines 1.6 1.8 2.0 16-20V (KR, PL, AEB, etc.)

ENGINE BEARINGS
	CON ROD BEARING SET
	Part#
	4B1606H	4B1606HX
Sizes	STD, .025, .25, .50	STD
Oil Clearance	Standard	+ 0.001" Extra
Half Type	Identical Halves
Material	Tri-metal Hardened steel backs
Min Std Shaft Size	1.8802" /47.758mm
Max Std Shaft Size	1.8810" /47.778mm
Min Std Tunnel Size	1.9921" /50.600mm
Max Std Tunnel Size	1.9929" /50.619mm
Max Wall at Crown	0.0553" / 1.405mm	0.0548" /1.392mm
Max Overall Length	0.748" / 19.00mm
Notes	Bearing has 1.65mm oil hole at crown
Diagram        (Top View)

Engines Audi / VW - 1.6 1.8 2.0 (2V, 4V, 5V, Turbo applicatons, 1983-2003)

ENGINE BEARINGS
	MAIN BEARING SET
	Part#
	5M1644H	5M1644HX
Sizes	STD, .25, .50	STD
Oil Clearance	Standard	+ 0.001" Extra
Half Type	Upper & Lower
Material	Tri-metal
Min Std Shaft Size	2.1243in / 53.958mm
Max Std Shaft Size	2.1251in / 53.978mm
Min Std Tunnel Size	2.3228in / 59.000mm
Max Std Tunnel Size	2.3236in / 59.019mm
Max Wall at Crown	0.0985in / 2.502mm	0.0980in / 2.489mm
Max Overall Length	0.728in / 18.49mm
Notes	Set contain 6 x 1648H and 4 x 1644H shells. Use 1648H shell in #4 position as upper and lower.
Diagram        (Top View)

Engines VAG group 4 cylinder engines 1.6 1.8 2.0 16-20V (KR, PL, AEB, etc.)

	XP XP C4104-PR C4104-PR
Quantity	4
Crankshaft	47.777 / 47.757
Housing	50.599 / 50.620
Max Wall	1.402
Max Length	18.971

Engines  Fits all 4 cylinder engines with 50.60mm big end:
1.6 1.8 (incl. Turbo) 2.0 (9A, KR, PL, 3A, AFB, AGU, AEB, ANB, APH, APU, ARZ, AVC, AWC, ARX, AUM, AUQ, AWM, AWP, AWT, AWU, AWV, BBU, etc.)