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Zipper’s Performance Products Billet Trap Door

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J&P Part: 541-759

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Zipper’s Performance Products Billet Trap Door

• CNC machined from 7075-T6 billet aluminum

• Provides rigid support for the transmission shafts

• Includes Grade 8 mounting hardware, shift drum bushing, main and countershaft ball bearings and circlips installed for your convenience

Made In The USA This product was proudly made in the USA

Product Specs

Manufacturer Part Number: 817-840

Material: Billet Aluminum

Sold in Units: Each


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Harley-Davidson® Models

Sportster 1100 Electric Start Anniversary XLH1100 : 1987
Sportster 1100 Electric Start XLH1100 : 1986–1987
Sportster 1200 Standard XLH1200 : 1988–1990
Sportster 883 Deluxe XLH883 : 1986–1990
Sportster 883 Hugger XLH883 : 1987–1990
Sportster 883 Standard XLH883 : 1986–1990

Customer Reviews

Overall Rating:
5/5 based on 2 ratings

5 by

My trap was dispatched on the Monday morning, and it was with me on the Friday morning in the UK. 10/10!! The Zipper trap door is a lovely looking piece of kit. Pity that it's going to be hidden. For those of you aware of 4 speed Evo sportsters, the double width bearing should help our gearboxes become a bit more robust. Just waiting for a repair to my rotor and we'll be off............!

5 by

Fits where OE trapdoor fits perfect and all bolt holes line up too, haven't put gearing in yet but a looks great. Ps shipping was very fast (5 days to Australia) you guy rock...

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