Harley JD VL WLA WLC Knuckle Oil Nipple Fitting 1915-1973 OEM# 3577-15 63533-15

  • Product Code: 353348945335
  • Availability: In Stock
  • $7.95

You are purchasing one USA-made oil line nipple or fitting for tapered oil lines for Harley-Davidson 1915-1973 single and twin models.  This is parkerized which would be correct generally-speaking for war year models like WLA, WLC, UA, and Knucklehead models.  These match up with our reproduction or OEM flared fitting oil lines.  You will find these on the motor case as a vent or supply fitting on 1915-1936 IOE and flathead models, from 1936 and up big twins used one for a vent fitting on the motor case, 45 models continued to use these on the oil tank and as a motor case vent fitting through the end of production in 1973.

You will receive one (1) nipple or fitting with your purchase.  We do sell these as a pair on another listing and a pack of three for you military bike restorers.  We also sell these in a cadmium finish and are working on getting them in nickel as well.

These are the spot-on for the original fittings and are properly cad plated and ready to be used on your high point judged restoration.  We carry fuel and oil lines for most all models from 1915-1964 in addition to wiring harnesses, lighting, sheet metal, wheels, driveline parts, restoration-correct hardware, saddles, saddlebags, and accessories.  We have a constantly rotating stock of great NOS and used OEM parts in addition to the best reproductions on the planet.  If you can't find what you need here or cimarroncycleworks, just email and ask.

Used on the following:
  • 1915-1929 J, F, JD, FD, IOE singles 61" & 74" twin IOE
  • 1926-1934 A, B, C, AA, BA 21" & 30.50" singles
  • 1929-1952 D, DL, DLD, R, RL, RLD, RLE, W, WL, WLD, WLA, WLC 45" solo
  • 1930-1936 V, VL, VC, VD, VLD, VH, VLH, etc. 74" & 80" big twin flathead
  • 1932-1973 R, G, GD, GDT, GE 45" Servicar
  • 1936-1947 E, EL, ELS, F, FL, ELA, ELC, 61" & 74" OHV Knucklehead
  • 1948-1964 EL, FL, FLH 61” & 74" OHV Panhead Hydra-Glide & Duo-Glide 
PLEASE NOTE: When it's practical, I will gladly combine all your purchases into one shipment for a discounted rate.  

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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