Parts

Ordering Parts

Tesla: Tesla part numbering explained @ TMC. Official: epc.tesla.com (as of 9/2022, not a good way to order parts even for "over the counter" parts shown in the parts catalog. Ordering process goes through Tesla app which may requires a Tesla VIN to register. See also: here and here and here.

Toyota RAV4 EV: check the site of your local Toyota dealer. Example near Sacramento: parts.maitatoyota.com.

Parts Order Lead Time

Following items can have long lead times:

• Breather from Toyota

• Ceimin Coolant and Gear box Seals from AliExpress

• Maybe axle seal from Toyota?

Following parts can be gathered within 1-2 weeks:

• SKF bearings (European based distributors can provide German or Italian/Various Country of Origin within this time window)

• SKF seals and speedi-sleeve.

• FAG bearing

• Axle seals from Tesla (need to have a Tesla app with Tesla Model S/X VIN registered to order)

Coolant Seal

Before jumping in to buy seals, read and understand the all important shaft preparation on this site. Seals works only with the shaft to seal. If shaft isn't prepared properly, seal can't  work. See also this thread @ openinverter.

PTFE (Teflon) Seals

Tesla's OEM seal is not available from Tesla. The seal manufacturer is unknown. LDU rebuilders are trying various options below. 

PTFE Lipped (Triple) - Ceimin Seals

Currently, the only commercial off-the-shelf PTFE (Teflon) seal with the correct dimensions (30 x 55 x 8mm) for the LDU is sold on AliExpress under the name Ceimin. Ceimin is a namebrand owned by Chenming Seals in Ningbo, China. Chenming verified this in writing, so Ceimin is not a "middle-man". Shipping time to CA, USA: ~2 weeks.

Ceimin coolant seal options:

• 30x55x8mm CTLBDYW | Config = triple lip | Material: PTFE compound 3965 | Color = yellow (part# ends in "YW") | Shore D hardness = 60 | Additives = Undisclosed | 👉recommended by Chenming for the LDU?

• 30x55x8mm CTLBDBK | Config = triple lip | Material: PTFE compound 2159 | Color = black (part# ends in "BK") | Shore D hardness = 62 | Additives = MoS2*

*From Parker, Fluid Power Seal Design Guide, pp 3-7: "Molybdenum disulfide (MoS2) increases the hardness of the seal surface while decreasing friction. It is normally used in small proportions and combined with other fillers such as glass." In other words: It could be more abrasive (to the shaft!) than virgin PTFE. Generally, the seal should be the sacrificial component and not the shaft. The yellow seal is the softest one of the two, given the Shore hardness values. So hopefully the yellow seal is also the least abrasive one.

Buy 2x Seal if chosing this seal. PTFE seal with excluder lip is really really hard to get on properly. Buy and extra one for practice before installing a new one.

CAUTION - Following are caution on Ceimin seals from Chenming company.

• Quality control is suspect. 1 gearbox seal received was defective yet includes a signed QC document. Probably just for show.

• Box for both coolant seal and gearbox seal are identical size. Only the product sticker is different. This box size is a tiny bit too small for the gearbox seal (bulging slightly on all 4 sides of box).

• Gearbox seal appears to be an attempted copy of OEM. See Motor Gear Box Seal below.

• Purchase transaction is typical of Aliexpress where seller always seeking to maximize profit. Can receive defective products. Return shipping difficult. Aliexpress  dispute process to refund.

• Company appears to be small with single office in China listed on their website.

But really no other seal option at this time