FLAT4 original products are manufactured to answer your needs. All our products are produced with careful planning and high quality control to bring you the best of the best. Some of our items are reproduction of those parts that you can not find anymore or the rare item with difficult acquisition, etc. These reproduction series are made faithfully from the N.O.S. part and combining our experience to make it better or user friendly. Also, there are more item in FLAT4 original products line and you will see our original designed item specially made to your air cooled VW.

Crankshaft is strengthen by having a radius journal end.

All journals were nitrided to give more surface strength. Also, all bearings come with micro polished standard size journal.

Oil holes are drilled and tapped for easy maintenance.

Cross grooved oil holes for maximum oil pressure to the rod journals.

FLAT4 original E4140/E4340 chrome-moly one-piece forged counterweight crankshaft is now available in 69mm to 82mm stroke. Welded counterweight crankshaft you see on the market today is made by welding the weight to the original used crankshaft and in order to ensure the straightness and avoid heat stress, it must be cut down the journal size on both main and rod journals. Due to the core of the original crankshaft, you see the welded counterweight crankshaft reground as much as 0.50 down. However, our crank is made by one-piece forging using E4140/E4340 chrome-moly, the strongest material available today , so the all journal come as standard and also come with nitrided bearing surface for long bearing life. Our crankshaft is also magnaflax and balanced and is drilled for 8 doweles.

Parts Number Products EG-050 FLAT4/CB PERFORMANCE 69mm ONE PIECE FORGED COUNTER WEIGHT CRANKSHAFT EG-051 FLAT4/CB PERFORMANCE 78mm ONE PIECE FORGED COUNTER WEIGHT CRANKSHAFT EG-052 FLAT4/CB PERFORMANCE 82mm ONE PIECE FORGED COUNTER WEIGHT CRANKSHAFT

				FLAT4 original aluminum valve cover is made in Germany. Special "O" ring is used to shut out any oil leak. Deep fins on the cover will help reduce the oil temperature. This valve cover also designed to accept the original style valve cover gasket and casted stopper will stop the gasket to be sucked in. Our cover is also designed to clear high ratio rocker arms, so the cover can be use on the street to the race application.
	Parts Number Products EG-164 GERMAN FLAT4 ALUMINUM VALVE COVERS W/GASKET 1300cc-ON　Pr. EG-164A GERMAN REPLACEMENT VALVE COVER GASKET for EG-164　Pr.

					FLAT4 original chrome moly flywheel is 21% lighter than the original heavy flywheel to achieve much faster acceleration. Drilled for 8dowels to much perfectly to FLAT4 original forged counter weighted cranks. Flywheel is dynamically balanced and even the ring gear is heat treated to ensure the quality of flywheel we sale.
				Drilled for 8 dowel pins and machined to take flywheel O-ring.			Ring gear is heat-treated to ensure its strength
		Parts Number Products EG-070 FLAT4 CHROME MOLY FLYWHEEL 12V 200mm 130 GEAR 5.5kg

After long period of R&D, FLAT4 finally come up with steel pulley that you can trust on.

As come as Genuine VW, FLAT4 H/D pulley made of 3mm thick steel all around.

Pressed on hub is used on FLAT4 H/D pulley.

Clearance on Hub shaft hole and woodruff key is just perfect.

Cut for the anti spin holder area is made carefully also.

Parts Number Products EG-242A FLAT4 H/D GEN/ALTERNATOR PULLEY

					FLAT4 original mesh air cleaner kit is design to give you a instant look of much thought after of KNECHT air cleaner. FLAT4 original mesh air clear kit is direct replacement for todays popular Weber IDF series carburetor air cleaner. You simply replace top and base plate and slide your K&N air elemt inside mesh plate. Now you can have the performance of Weber and look of Vintage performance.
		Parts Number Products CA-026D FLAT4 MESH AIR CLEANER KIT W/ELEMENT for WEBER IDF SERIES　Ea.

You can buy FLAT4 products at... PLEASE CONTUCT US >>> oversea@flat4.co.jp
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