ULTRA MDI Nagai Denki No.9950 Basic Model - Vintage Ignition, Fits GZ10/GX71/AE86/KP61/TE27/TA22/S30Z
ウルトラ ULTRA MDI 永井電子 No.9950 Basic model 当時物 ソアラ GZ10 GX71 AE86 KP61 TE27 TA22 S30Z ハコスカ ケンメリ サニー L型 A型

This is a Nagai Denki 'ULTRA MDI' No.9950 Basic Model, a period-correct dual-spark ignition amplifier unit. The seller lists broad compatibility with classic Toyota and Nissan models including the Soarer (GZ10), Mark II/Cresta/Chaser (GX71), AE86, KP61, TE27, TA22, S30Z Fairlady Z, Hakosuka and Kenmeri Skyline, 510 Bluebird, and Sunny, suiting both L-type and A-type engines. A coil harness is included, which the seller notes is good for cars using cylindrical ignition coils and other older Nissan models. The stay bracket for mounting the unit is not included. The seller obtained this unit as a running-condition takeoff but never installed it due to missing parts, so its function has not been verified. It is sold as an electronic part with no warranty, as-is, based strictly on the photos shown.
Used with some scratches and dirt, though the seller says it looks fairly clean in the photos; the mounting stay bracket is missing and the unit's function has not been tested or confirmed.
Shipping: Ships prepaid via Yamato Takkyubin only, with no choice of carrier. The seller's rate table shows shipping cost varies by destination region within Japan (roughly 850 to 1460 yen), which is separate from the item price.
Ships from Saitama, Japan, to our Osaka warehouse and on to Pomona.
Starting Price
No bids
$413
¥65,000
The bid is in yen and the dollar figure converts at today’s rate. This is the item alone; the all-in landed price is in the quote below.
Oct 3, 2026, 5:47 AM PDT
| Item price, at the starting price | $413¥65,000 |
| Export co. commission & import tax | $136¥21,450 |
| Shipping to our Osaka warehouse | $14¥2,200 |
| Ocean Freight to California | $40 |
All-in pickup (Pomona, CA), at the starting price
U.S. domestic shipping not included
$603
The seller sets shipping to Osaka after the sale, so that part of the quote is confirmed before you commit.

