Harley NOS OEM# 2-40BM W WL WLA WLC Front Cylinder & Piston Kit In Cosmolene #A

  • Product Code: 293047694701
  • Availability: In Stock
  • $299.95

We recently moved the contents of our own old warehouse and have made several huge purchases of NOS and used OEM parts for 45, big twin, XL, VL, and K-Models.

You are purchasing one NOS OEM front cylinder and piston kit for W, WL, WLA, and WLC models, this is WW-II military surplus and consists of one cylinder with standard bore and one standard piston kit with rings, pin, and retainer clips.  This is for WL, WLA, and WLC models for use with aluminum heads.  This cylinder is still perfectly preserved under a coat of cosmolene.  I tried to make out the casting date code on the base but didn't want to wipe off all the cosmolene to reveal it.  "120-36" is cast on one side of the cylinder lower boss, date code appears to be "18-5", I would assume 1945 manufacturing year but the 18 is throwing me off.  

There are no broken fins, no stripped holes, manifold nipple is in place, valve guides are installed.  The photos are of the actual cylinder and piston assembly you are purchasing.

The best part of using NOS OEM engine parts is you know they will fit and work as intended.  The reproduction cylinders out there are very good, but there can be fitment issues.  You never have to question the metallurgy of an NOS OEM H-D cylinder or piston.  They worked and lasted forever if you took care of them.

I believe you may use this with cast iron heads, but the parts book lists 2-36A as being the correct cylinder for use with cast aluminum heads.  Please check your own reference material if you plan to use this with anything other than what I've listed this compatibility-wise.

This is a heavy part to ship- 19 pounds.  it will be carefully re-packed in the box I got it in then over-packed in another box to ensure it arrives just as you see it. Your shipping price includes insurance.

You get the following:
  • 2-40BM Cylinder for aluminum heads
  • 253-29A Piston kit, standard size with rings, pin, and retainer clips
We also carry highly detailed restoration correct shift linkages, shift rod ends, shift rod hardware, engine hardware, transmission parts, brake parts, etc.  CP-1035, and CP-1038 hardware you will need to restore your bike or keep it on the road as well as military equipment for WW-II era bikes.  Be sure to check our fuel and oil line kits including the correct woven fuel and oil lines for WLC models, wiring harnesses, and other electrical products for 1915-1984 Harley-Davidson motorcycles.

Fits the following models:

  • 1937-1952 W, WL, WLA, WLC 45" twin solo with aluminum heads
  • 1937-1973 G, GDT, GE 45" Servicar with aluminum heads
We have many listings for the WL and WLA models as well as RL, singles, VL, and JD.  if you don't see it there or cimarroncycleworks, just email us and ask.  We have skid pans, leather kits, ammo boxes, gun scabbard mounts, etc.

Located at and ships from Cimarron Cycle Works in beautiful Cimarron, New Mexico, USA!

A Note On Shipping:

If you would like to take advantage of our combined shipping discounts or shipping promotions, please first add all your items to your shopping cart then proceed to check out and pay for all items at once.  Your shipping discount will be automatically figured.  Should you need to add an item, we will combine it with your other purchases and issue an appropriate refund to your PayPal account.

We work with a small and select group of vendors and dedicated craftsmen to bring you the very best restoration and repair parts for 1915 to 1984 Harley-Davidson motorcycles.  We also offer a huge collection of restoration quality plain head, CP-1038, & CP-1035 bolts; fillister head & round head screws; correctly machined nuts & washers; fuel & oil lines; wiring harnesses; handlebar switches; air cooled spark plugs; clips, clamps, and ties in cadmium, parkerized, zinc, chrome, and raw finishes.


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