Any reason why B&M is twice the price of Derale? I'm more than willing to pay up for quality but not for a brand name...
Not sure. It was installed by the previous owner. It appears to be plate style and it measures 7x11x0.75.
Derale 7000 series use a tube and fin style cooler versus the derale 9000 series a plate and fin style and then the Derale 10000 series and my B&M uses an even more efficient stacked plate and fin. The stacked plate and fin is more efficient and cools better than tube and fin, I will leave you to google if you want a more scientific answer lol. When you look at Derale 9000 series, the model Derale 13614 is the closest in comparison I could find to the B&M 70274 I have regarding size, but it is still thinner. I can't find exact GVW for B&M, but the derale 9000 I posted is rated at 22,000 GVW. According to one web site I found, the B&M 70264 measuring 5.75x11x1.5 is rated at 24,000 GVW. When we look at Derale 10000 series, it actually has a higher BTU rating than the B&M, the Derale 13402 handles 32,000 BTU and the 13403 handles 37,000 but to B&M's 29,200 BTU. The difference being that the Derale is even thicker than B&M. I'd say the biggest downfall to your cooler is sheer size. As for money, the Derale 10000 series is similar in price to the B&M, on Amazon the 13402 can be had for $112 and 13403 can be had for $125.
Derale 9000 13614: Series 9000 Plate & Fin : 17 Row Series 9000 Plate & Fin Transmission Cooler Kit
Specifications •Cooler style: Plate & Fin
•Construction: Aluminum
•Inlet size: 1/2" NPT female
•Fitting size: 3/8" barb
•GVW: 24000
•Width: 10-1/8"
•Height: 11-7/8"
•Depth: 1-1/4"
•Inlet dim: 8-7/8"
•Mounting: 6-3/4" x 10-1/2"
•Hose size: 3/8"
•Hose length: 4'
Features •Prevents heat related transmission failures
•Extends life of transmission
•Improves transmission performance
•Sturdy furnace-brazed aluminum construction
•17 row cooler design
•1-1/4" turbulators maximize cooling & minimize pressure drop
•1/2" NPT female cooler fittings
•1/2" NPT x 3/8" hose barb adapters included
•22500 GVW rated
•Fluid Capacity: 12 oz.
Derale 10000 13402: http://derale.com/products/fluid-co...1-2-npt-ports-and-3-4-16-filter-thread-detail
Description
With our top of the line 16 Row Stack Plate cooler, -6AN aluminum fittings and hose barb adapters, this highly efficient kit extends transmission life by preventing heat-related transmission failures while also improving shifting performance. This kit comes with a complete transmission cooler hardware kit to easily install onto vehicles with 5/16" transmission cooler lines.
Specifications •Cooler style: Stacked Plate
•Construction: Aluminum
•Inlet size: -10AN o-ring female x -6AN male
•Fitting size: 3/8" barb
•Width: 13"
•Height: 6-7/16"
•Depth: 2"
•Inlet dim: 10"
•Mounting: 12-1/4" x 4-7/8"
•Hose size: 3/8"
•Hose length: 4'
•32,000 BTU's Per Hour
Features •Built in turbulators agitate fluid for maximum heat transfer
•Sturdy furnace brazed all aluminum construction tested to 250 p.s.i.
•16 row cooler design
•Male -6AN aluminum O-ring inlet fittings & 3/8" hose barb adapters included
•Complete hardware kit included
•32,000 BTU's Per Hour
B&M 70274: B&M Oil Cooler, Supercooler Large, NPT Fittings, Plate Type, Black » B&M
Dimensions 11 x 11 x 1-12
Features B&M Super Coolers are 100% aluminum stacked plate style core which is ideal for additional transmission cooling. With oven brazed construction this sturdy cooler design is practically impervious to flying rocks or other debris. •Better Than Ordinary Cooler
•Resistant To Damage
•Rigid Stacked-Plate Design
•Small Size and Lightweight
Product Attributes
Depth (in):
1.50
Inlet Size:
1/2 NPT
Outlet Size:
1/2 NPT
Width (in):
11.50
Height (in):
13.00
Row Quanity:
45
Material:
Aluminum
Title:
B&M® 70274 Cooler, Supercooler Large, NPT Fittings, Plate Type, Black
Package Contents:
Cooler
Inlet Attachment Type:
Female Threads
Outlet Attachment Type:
Female Threads
Low Temperature Bypass:
No
Design Type:
Stacked Plate design